Beyond the Single: The 2025 Deep Cuts That Hit the Deepest

By Hasan Beyaz

There’s a particular kind of magic that lives on the “other” side of a tracklist. Title tracks carry the pressure: charts, playlists, choreo, campaign concepts, all the decisions that have to make sense in a three-minute window. B-sides are rarely asked to do that much. Which is exactly why they’ve become the place where K-pop gets the most honest – and often the most interesting.

Before we get into it, it has to be said that for a long time, B-sides barely got the dignity of a second listen. They were often treated as functional, polite, sometimes charming, but ultimately filler. Title tracks did the heavy lifting, and everything else existed to bulk out the physical album or give fans something to comb through while waiting for the next comeback. But that logic doesn’t hold anymore. In the streaming era, nothing stays hidden. Listeners move through tracklists the same way they scroll through timelines: immediately, repeatedly, obsessively. A weak B-side is no longer a throwaway; it’s a gap in the story. And because fans now expect artistry to extend beyond the “headline” moment, B-sides have become the real space where artists show who they are when the spotlight isn’t dictating the rules. Today, a release isn’t determined by the title track alone; it’s shaped by what happens in the margins.

There’s also the way B-sides have stepped out from behind the curtain entirely. It’s no longer unusual for them to receive their own music stages, performance videos, or even full music videos — something that would’ve been unthinkable a decade ago. And when a B-side goes viral, it feels like a second centrepiece. Sometimes they even end up overshadowing the title track, reshaping the entire comeback narrative in real time. Labels have learned to treat these songs as extra ammunition, not extras. A strong B-side can extend a promotion cycle, broaden an artist’s appeal, or unlock a different facet of their identity without the constraints that come with a lead single. In today’s ecosystem, a comeback is defined by the full arsenal.

You can feel that everywhere in 2025. When TXT closed their third album with “Song of the Stars”, they were building a cosmic hymn about whether we’ll remember each other when everything falls apart. ZEROBASEONE tuck “Devil Game” early in BLUE PARADISE and let themselves be seductive and strange, stepping away from their usual brightness. NMIXX warp their voices through a cyber-core malfunction on “Reality Hurts”, turning emotional burnout into something glitchy and alive. None of these feel like safe, committee-built singles. They feel like songs made for people who stay for the full record.

B-sides are often where you’ll find the “full” artist, but this year that gap between surface and centre got even clearer. On one side, you have the expected: big hooks, big sets, big slogans. On the other, you have IVE reading old diaries on “Dear, My Feelings” and deciding to love every version of themselves they find there. You have Jin, Yojiro Noda and ADORA sketching a whole emotional landscape out of clouds and rain on “With the Clouds”, a track that moves like a memory returning in waves. These songs are not trying to sell you a concept. They’re asking you to sit with a feeling.

There’s also a noticeable confidence in how far artists are willing to push sonically once they’re off the title track leash. TEN leans into cartoon villainy on “Bambola”, twitchy electro-pop and playful control. Yves pulls electroclash, hyperpop and Y2K club into one icy shape on “White Cat”, crafting a world that barely fits under the K-pop umbrella at all. ARTMS go even darker with “Goddess”, a track that feels like a DnB séance in an abandoned club. These aren’t polite experiments. They’re proof that the “idol” frame can stretch as far as they’re willing to push it.

At the same time, 2025’s B-sides were unusually good at zooming in on the small stuff. ifeye’s “Bubble Up” isn’t reinventing the genre, but it’s just perfectly catching that feverish, fizzy panic of a crush that suddenly becomes real. ILLIT’s “bamsopoong” turns a night picnic into a tiny sanctuary, blueberry skies and bubble tea and the relief of just being known. CORTIS’ “FaSHioN” thrashes around in thrifted outfits and teenage bravado, insisting that five-buck tees can carry as much pride as any luxury logo. These songs are about texture.

There were also shifts in who gets to be seen and how. Chuu’s “Kiss a Kitty” became one of the year’s most talked-about tracks, even more so after songwriter Gigi Grombacher confirmed the WLW framing fans had already read between the lines. YENA bringing Miryo onto “Anyone But You” felt like a little time warp: a fourth-gen soloist sharing space with one of second-gen’s most influential rappers, not as a novelty but as a genuine shared language. U-Know starting his first full solo album with “Set In Stone” underlined something else: B-sides reset how the entire artistry can be seen.

Highlighting B-sides isn’t about arguing that the “real” music is hidden away, or that title tracks don’t matter. It’s about acknowledging where a lot of the year’s most interesting work actually happened. These are the tracks people stayed for when the teaser reels ended and the cameras moved on. The ones that sound like late-night conversations, private jokes, long-distance promises, or the moment you realise you’ve grown.

If this year proved anything, it’s that K-pop’s heart doesn’t just beat where the spotlight hits. It beats in the second track, the album closer, the song you only find because you didn’t skip. That’s where the stars, the goddesses, the thrift kids, the glitching hearts and the diary pages all live together. And, ultimately, that’s where 2025 did some of its best work.

TXT - Song of the stars

“Song of the Stars” from TXT’s third album The Star Chapter: TOGETHER feels less like a closing track and more like something the band placed gently in your hands, knowing it would break a little when you touched it.

It’s a soaring rock-pop ballad built on the smallest, most human fears — not being remembered, not being found, not hearing your name when the world goes dark. And yet the song keeps choosing hope, even when it hurts. Painfully intimate, it doesn’t reach for grandeur; it hits because the lyrics speak plainly about connection, loss, and the hope that something shared might last beyond the moment you part.

The imagery is simple: starlight, names called into the dark, voices meeting somewhere above the world. Within that simplicity is an ache TXT have always carried well.

The verses sit in loneliness — the belief you were the only one drifting, the doubt that anyone would keep your memory. Then the shift: someone saying your name for the first time, quietly, like a lifeline thrown across the night. It hits harder than any metaphor. It’s the relief of realising you were never actually alone.

The chorus feels like a promise whispered with shaking hands. Follow the voice of the stars. Sing together. Remember each other forever. The “na-na-na” refrains aren’t filler; they’re what you chant when you can’t bring yourself to say goodbye.

Each member sounds like they’re holding something fragile, passing it forward without dropping it. “Song of the Stars” doesn’t just ask you to feel — it asks you to remember what it means to be held in someone’s memory, even when you’re not there to see it.

ZEROBASEONE “Devil Game”

“Devil Game,” track two on BLUE PARADISE, feels like the moment ZEROBASEONE stop keeping their impulses tidy and pretending their shadows don’t exist. They’ve spent most of their catalogue orbiting brightness, melody, and that clean youth-pop sheen, but here the edges shift. The production, built on a crisp early-2000s pop DNA, settles into something cooler and more controlled – a low-lit dance-pop pulse built on dry drums and a bassline that moves like a warning.

The lyric pulls the atmosphere into focus. Everything circles around desire that feels like a risk, the kind you walk toward even as the alarms go off. The hide-and-seek imagery gives the song its tension; they aren’t running from the devil, they’re flirting with him. Lines like “A frightening whisper, somehow I can’t refuse it” sit with an ease that makes the temptation feel mutual.

It’s a mood they rarely explore – darker, more sensual, but rooted in the same clarity that defines them. Hinting at a version of ZEROBASEONE that’s less innocent yet still interesting, “Devil Game” shows how sharp they can sound when the lights drop.

NMIXX: “Reality Hurts”

“Reality Hurts,” NMIXX’s first full English track and Lily’s writing debut, feels like being dropped into the middle of a system overload. The production doesn’t build in a straight line; it mutates. The intro moves slowly, almost plodding, like the ground is giving way under your feet. Then the pre-chorus tightens the pace, pulling everything into a faster pulse. By the time the first chorus hits, the track is already glitching around the edges. A warped synth wave bends in and out of pitch, like it’s rewriting itself mid-bar, and the song snaps into a fast 4×4 beat that turns the whole thing into a cyber-core adrenaline rush.

It’s digital in the most literal way. Every sound feels processed to the point of distortion, but in a way that suits the lyrics. Lily and Sophie Powers’ writing cuts through the chaos with clean intent. The verses pick apart the way people try to package and contain them, acting like a pink bow can smooth over anything complicated. They’re singing about breaking out of boxes, burning off expectations, refusing to be simplified – and the production behaves the same way. Nothing stays still. Even the post-chorus chants feel like corrupted files echoing back at you.

What pulls it all together is the attitude. The track never tries to be pretty. It’s sharp, bored of playing polite, and comfortable showing teeth. “Reality Hurts” is a controlled malfunction, and that’s exactly why it lands.


TEN: “BAMBOLA”

From his second solo album, “Bambola” is WayV’s TEN leaning into his most mischievous, hyper-digital instincts. It’s a dance-pop track on the surface, but the attitude sits somewhere stranger – glitchy, theatrical, almost cartoonishly sinister in the way it plays with control and seduction. The beat clicks along like clockwork gears, electronic enough to feel synthetic but warm enough to dance to. His vocal switches between sharp, rhythmic talk-rap and a slippery, melodic taunting that pulls you further into the puppet-master concept.

The lyrics build the whole performance out. Ten isn’t the wounded narrator or the romantic lead; he’s the antagonist having fun, tugging the strings just to see how far he can push. Lines like “Use you like a bambola ’cause you do what I told you to” land with a playful domination, the kind you know is exaggerated on purpose. Even the sheesh and tweet-tweet ad-libs lean into that cartoonish villain energy.

Production-wise, it’s just very NCT. The track is wholly unpredictable in the way it’s constantly shifting textures and flourishes. It’s the closest Ten’s solo work has come to the SM experimental lineage he came up through.

“Bambola” works because he commits to the bit. It’s cheeky, twisted, and self-aware in a way only he can pull off.

ILLIT: “bamsopoong”

“bamsopoong” sits inside bomb, ILLIT’s third EP, like a hidden lantern – glowing and unexpectedly grounding. Where the title track “Do the Dance” goes full velocity, this track moves in soft focus. It feels like stepping out of the noise and into a moment you didn’t realise you needed. Iroha described it as sharing a quiet, starlit space with someone who understands you, and that intimacy is exactly what gives the song its pull.

The production leans lo-fi and analogue, almost vinyl-warm. Synths glimmer at the edges like frost on glass, and the arrangement leaves space for air to settle between the notes. It has the gentleness of a J-pop lullaby and the drifting quality of a dream-pop outro, more interested in atmosphere than impact. The emotional weight comes from the restraint.

The lyrics sketch out a night that feels half-real: blueberry skies, square picnic mats, bubble tea laid out like tiny charms. It’s slice-of-life storytelling, but with a haze of nostalgia that makes the moment feel suspended in time. Lines like “When I’m with you, the whole world feels special” don’t push for drama; they land because they’re sung with clear, unguarded tone.

By the outro’s soft “na-na-na” refrain, the song feels less like a B-side and more like a memory you wandered into. A pocket of calm you want to stay inside a little longer.

ifeye - Bubble Up

“Bubble Up,” tucked into ifeye’s debut, feels like the moment the group shows their real engine. Where the title track “NERDY” leans innocent – that first-rush flutter of liking someone – “Bubble Up” throws you straight into the crush once it becomes physical, and impossible to hide. It’s a clever pairing: one song blushes, the other bites.

The production is pure pop-R&B gloss, bass-heavy and perfectly locked in. The beat snaps like a rubber band, giving the track a bounce that feels almost elastic. Everything is clean and chrome-edged; there’s no clutter, just textures clicking into place with a confidence you don’t expect from a debut.

Lyrically, it walks a fine line between cute and feverish. All the “bubble up / bubble down” refrains act like a pulse, mirroring the way a crush can spike without warning. The verses tumble through flustered cheeks, dizzy thoughts, and that fizzy panic of being seen – especially in lines like “Feel so dumb-dumb-dumb, make me crazy.” It’s playful, but it’s also relatable in a way that feels honest.

Their vocal chemistry seals it. Light, sugary tone floating over a weighty bassline gives “Bubble Up” its identity. As a debut B-side, it does what every good B-side should: reveal the group’s deeper colours long before they’ve even had time to define them.


Yves - White cat

“White Cat” is Yves loosening every bolt on her sound and letting the whole structure shake. It’s not K-pop in the conventional sense; it barely sits inside any genre at all. The track slips between electroclash grit, hyperpop sharpness, and that sleazy, Y2K club-electronica pulse that feels humid rather than glossy. The beat flickers like a strobe, synths scrape at the edges, and her vocal cuts through it all with a kind of cool detachment.

What’s striking is how confidently she occupies this world. “Loop” hinted at her appetite for distortion, “Viola” built out the mood, and “White Cat” is the moment it all clicks into a full sonic universe – loud, tactile, and magnetic. The production nods towards PC Music and SOPHIE’s metallic textures, but Yves twists those influences into something friendlier, like icy club music with a dainty bow adorning it.

Visually and lyrically, the track is minimalist but charged. A blank white backdrop becomes a whole aesthetic language; she doesn’t need set dressing because the energy is already overwhelming. “White Cat” moves like a creature with its back arched – elegant, dangerous, and entirely self-authored. It’s Yves at her most forward-facing, building a lane that only she can walk.


U-KNOW - Set In Stone

“Set in Stone,” the opening track for TVXQ U-Know’s first full-length album, carries the weight of a career that’s stretched across two decades without sounding burdened by it. Instead of going maximal or overly symbolic – the usual trap for a debut album opener, especially from someone with his legacy – he chooses something sleeker. The track leans into 80s synth-pop gloss: crisp drum machines, glowing synth pads, and a steady pulse that moves with quiet decisiveness. It’s confident without chest-beating, the kind of opener that doesn’t need to prove anything.

The lyrics are what have people talking. U-Know sketches a version of himself that’s weathered, realistic, but unwavering. Lines like “현실적인 stress, 고민들이 습관처럼 당연해져” acknowledge how pressure calcifies over time, yet he refuses to fold under it. The refrain’s simplicity – “Baby, I do it… 이겨내 매일” – reads almost like an internal mantra, a reminder that persistence isn’t always dramatic.

What makes the song hit is the steadiness. The chorus crystallises his message: a future built by hand, set and reset as many times as needed. By the outro, “Set in Stone” feels less like an introduction and more like a career-long mindset distilled into four minutes of synth-lit resolve.


Chuu - Kiss a kitty

“Kiss a Kitty” is the kind of B-side that takes on a life bigger than the release it came with. It drifted into the spotlight on its own terms and it didn’t take long for people to understand why. Ironically, the track landed during Lesbian Visibility Week, and songwriter Gigi Grombacher confirmed in a viral social media response what fans already felt in their bones: this is a WLW love song dressed up as a playful cat metaphor.

Sonically, the warm, low-slung bassline keeps everything in a soft sway, and the disco-pop groove settles into that cosy, mid-tempo pocket that Chuu wears well. It’s dreamy without going hazy, bright without tipping into bubblegum. The charm comes from how the instrumental lets the lyrics breathe.

And the lyrics are certainly where the song blooms. The “kitty” isn’t coy imagery; it’s affection folded into softness, curiosity, and that tender gaze that sees someone as both cute and cosmic. The verses play with physical closeness, and the tiny domestic rituals that feel sacred when you’re in love.

Chuu sings it with a gentle confidence, giving the track an intimacy that feels warm and quietly bold. Beyond its virality, “Kiss a Kitty” works because it feels like a crush you can hold in both hands.


ARTMS - Goddess

“Goddess” feels like stepping into a club that shouldn’t exist on Earth – something suspended between myth and machinery. The beat hits like murky drum & bass funnelling through Jersey club footwork; sharp jolts and low-frequency rumble. It’s unstable, and liquid-like in its movement. You don’t dance to it so much as get dragged into its gravity.

The vocals sit like an invocation rather than a melody. Whispers, murmurs and that repeated threat – “Goddess gonna burn it” – turn the song into a ritual. Every line feels hypersonic, like skin-on-ice. It’s divine wrath translated into pop structure, but stripped of softness. ARTMS lean fully into their mythmaking here, not as idols but as entities with wings.

The production is where the world-building really takes shape, and a lot of the song’s power comes from the instrumental itself. The production gets as much narrative weight as the lyrics – long stretches of instrumental breaks which feel like disorienting transformation sequences.

The synths hustle like metal catching light, and the rhythm twists in abrupt directions, almost like a creature shifting form mid-flight. You get flashes of two-step smoothness, then a Jersey-club drop and echoing synths that feels like the floor falling out from under you. It’s dark, and deliberately overwhelming.

“Goddess” is built for true transcendence – the kind you find at 2AM when the lights strobe too fast and your body tries to keep up. It’s ARTMS at their most celestial and feral, ruling their own sonic heaven.

CORTIS - “FaSHioN”

“FaSHioN” is brat chaos wrapped in a thrift-store headspace. It doesn’t chase luxury, and it definitely doesn’t try to be aspirational. Instead, it flips the hierarchy: flea-market fits as the new flex, confidence as the real currency. The track moves with the jumpy, stomping energy of kids tearing through Dongmyo stalls, pulling shirts off racks and styling themselves on instinct rather than trend forecasts.

The production is hyperactive, driven by a punky hip-hop rhythm that feels punchy — the perfect backdrop for a track that brags about five-buck tees and 10,000-won trousers. The point isn’t the price. It’s the attitude. CORTIS makes thrift culture sound cool in a way that feels true to who they are, not a concept someone handed them.

The lyrics, written quickly according to the members, have that lived-in quality. Hongdae, Dongmyo, worn pieces with stories – it’s not an aspirational fantasy, it’s their routine. That’s why the track hits: they’re not imitating a fashion subculture, they’re speaking from inside it.

“FaSHioN” captures the exact moment where teenage style, cheap finds, and genuine self-expression collide. It’s totally unfiltered — exactly the energy you want from a rookie group defining their lane in real time.

IVE - Dear, My feelings

“Dear, My Feelings” is IVE at their most disarmingly earnest. The song doesn’t try to impress with production tricks or big sonic swings; it settles into something soft and open so the message can breathe. And that message is unmistakably IVE: emotional self-acceptance, but phrased with the tenderness of someone learning to like the parts of themselves they used to hide.

The lyrics read like a conversation with younger versions of yourself — the diary pages, the midnight anxiety, the butterflies that kept you wired until sunrise. Instead of brushing away those memories as embarrassing, the song pulls them close. “Whether you cry or smile, I love you” turns all those past feelings into a little family, all of them valid, all of them invited back in.

What makes it powerful is the vulnerable honesty. They acknowledge the messy ink of diary pages, the impulsive messages, the moments they couldn’t control themselves. Instead of framing them as mistakes, they treat them as proof of being alive. There’s a softness in lines like “It’s alright, silly” that feels like emotional re-parenting, and the kind of comfort you only learn to give once you’ve grown a little.

The refrain of “I love my own feelings” is a decision to hold onto every version of yourself without shame. It’s simple, but deeply human, and unmistakably IVE.


Itzy - “8-BIT HEART”

“8-BIT HEART” is ITZY at their most playful and petty – an experimental closer to their 11th mini album TUNNEL VISION that swaps heartbreak poetry for retro game logic. Ending the album with something “fresh and funny,” as RYUJIN put it, makes perfect sense: if the opening tracks dive into heavier emotional terrain, this one comes in like a glitchy palate cleanser. YEJI joked that recording it felt like acting, and CHAERYEONG said they’d simply been waiting for a song like this. That energy is baked into every line.

The premise is simple but sharp: feeling undervalued in a relationship and expressing it through 8-bit metaphors. A crushed heart becomes corrupted data. Emotional resets become system reboots. The other person treating you like a “side quest” hits harder because it’s delivered with an eye-roll instead of a breakdown. Lines like “You crush my peace, just shut down mode” turn frustration into a punchline without diluting the sting.

Musically, it’s got to be one of the weirdest songs of the year – chiptune edges, electronic pops, and rhythmic glitches scattered through the diversity. Somehow, that chaos also leaves space for the personality: the bratty ad-libs, the deadpan “no shade, no tea,” the bridge that suddenly breaks character and asks if the other person has found happiness “in another game.”

“8-BIT HEART” closes the album on a smirk rather than a sigh, refusing melodrama in favour of self-respect coded in pixels.


Jin - With the clouds

“With the Clouds” is a pop-rock track that feels like it shifts the ground under you as it moves. Written and produced by Yojiro Noda (RADWIMPS), ADORA, and Jin, it carries the fingerprints of all three: Noda’s cinematic sweep, ADORA’s melodic sensitivity, and Jin’s calm emotional centre. What they build together is a song that refuses to stay still.

It’s also an all-Korean release, and that choice shapes the intimacy. The phrasing lands with a softness that feels closer to a creative diary entry. Jin draws the sky as both landscape and emotional mirror — clouds carrying his world, memories drifting like rain, loneliness held at the horizon until a warm voice breaks through the silence. The chorus rises like a promise spoken carefully: if your sadness turns to rain, he’ll take it; if your heart risks darkening, he’ll keep it as clear as “the day it all began.”

What stands out is how naturally the production shifts. The structure turns corners without signalling where it’s headed. Drums push forward with a running pulse, then everything lifts into near-weightlessness before focusing again into something steadier. These transitions feel less like sections and more like emotional currents — recognisable only after you’ve lived through them.

“With the Clouds” unfolds like a wide, cinematic landscape with a single honest voice at the centre — gentle, expansive, and extremely sure of itself.


YENA ft Miryo - Anyone but You

“Anyone But You” is the kind of collaboration that shouldn’t work on paper but makes perfect sense the moment it starts. Pulled from YENA’s Blooming Wings mini album, the track pairs her bright, melodic delivery with Miryo’s unmistakable snarl — a tone that shaped the sharper edge of second-gen pop. Their worlds colliding is an unexpected curveball, yet the song creates a space where both can exist without diluting each other.

The production is the quiet glue. It leans into house-coloured dance-pop, but with a polished, jazz-lounge undercurrent: soft piano flickers, refined chords, and a beat that moves with a smooth, theatrical lift. It’s a palette that subtly nods to Brown Eyed Girls’ classics — the sophistication of “Sign,” the cool poise of “My Style” — but never feels derivative. Instead, it frames YENA in a new light, giving her room to play with texture rather than just energy.

Miryo’s verse drops in like a blade. Cool, and controlled — the perfect counterweight to YENA’s emotional brightness. That contrast becomes the entire architecture of the track. YENA doesn’t try to mimic Miryo; she meets her head-on, creating a dynamic push-and-pull that feels surprisingly elegant.

“Anyone But You” shows YENA stepping outside her usual lanes, reaching across generations, and holding her ground with ease.