SUNMI is turning up the volume on her next chapter. The K-pop powerhouse has dropped the first trailer for her upcoming single Bass(ad), out 26 August at 6PM KST, offering fans a tantalising glimpse into a sound and style that feels both unexpected and unmistakably hers.

The teaser opens on a striking image: SUNMI with a short platinum blonde crop, hair swept up and lifted as if charged with static. Moments later, the mood shifts to a grungey, garage-like space where she’s locked into a bass groove, fingers slapping across the strings. It’s a side of SUNMI rarely shown before: grounded in live instrumentation rather than her usual lush synth-pop palette.

Bass(ad) will be her first musical release in over a year, following 2024’s “Balloon in Love,” which rounded off her summer single trilogy — a conceptual arc that began with the breezy romance of 2020’s “Pporappippam” and continued with the sultry heat of 2022’s “Heart Burn.” If that trilogy captured the seasonal highs of summer love, this new era hints at something moodier, perhaps more confrontational.

Her agency has confirmed that SUNMI is currently in the final stages of work on her next album, further fuelling speculation that Bass(ad) could be the opening statement of a larger body of work. Known for crafting distinct, self-contained eras, each with its own visual and sonic identity, SUNMI’s shifts in style are rarely superficial — they tend to signal deeper thematic evolutions.

For now, the Bass(ad) trailer leaves plenty unanswered: Is the title a playful nod to attitude? Or the start of a rock-inflected turn for one of the genre’s most fluid artists? Whatever the case, the countdown to August 26 has officially begun — and SUNMI, as always, has everyone watching.