I.N of Stray Kids has made his solo OST debut, lending his vocals to thriller-romance K-drama Love in Disguise.

According to distribution company Stone Music, who will be publishing the drama’s soundtrack, I.N contributed to the tracklist with the solo track “Guilty Pleasure.” The song is scheduled for release at 6PM KST on November 2, 2026.

Love in Disguise is a romantic comedy and mystery thriller drama based on the web novel Why Don’t You Know It’s a Girl?. Directed by Park Dan-hee (Weak Hero Class 1, Tastefully Yours) and produced by tvN and Prime Video, the drama follows a workplace romance as it develops in the midst of a murder mystery case – but with a twist. Female main character Kang Jae-hee (played by Seol In-ah) assumes a male disguise in order to investigate, causing the secret of her gender to linger in the background. Especially when her employer, Yoon Yi-jun (played by Yim Si-wan) begins to fall in love with her. Love in Disguise first aired on October 19, 2026, and consists of 12 episodes overall.

The project is a milestone moment for I.N. “Guilty Pleasure” will be his fourth OST overall; he has previously been a part of “START!” for Resident Playbook (I.N, LEE KNOW, SEUNGMIN), “GENIE” for Genie, Make a Wish (I.N, HAN, FELIX), and “Neverending Story” for Extraordinary You (Stray Kids). However, it will be his first as a solo artist. While I.N is already well-known as a member of Stray Kids, this OST will give fans the opportunity to experience his voice in a different setting, this time without others’ alongside it.

“Guilty Pleasure” is an upbeat pop-rock track, led by a classic band sound and I.N’s distinct vocals. It is his first solo venture into the pop-rock genre, and given the K-drama’s genre overall, many are curious as to how the song will fit into the contrasting atmosphere created by the thriller-romance plot.

Additionally, as the fourth OST release for Love in Disguise, many are curious as to where this track will fit into an impressive line-up. The three songs released so far are “DARKROOM” by YOUNGSEO, “Falling” by Meego, and “Drawn” by THAMA, with others from Min Jiwoon, Tuesday Beach Club, and Yim Si-wan set to be released after “Guilty Pleasure” as the drama airs.

Alongside this release, I.N is part of several Stray Kids promotions taking place throughout November. The eight-piece are set to perform for three consecutive nights at the Tokyo Dome beginning November 6 as part of their <RUN IT> World Tour, all three having swiftly sold out. Then, on November 25, Stray Kids will release their fourth Japanese EP Suiatsu and complete its subsequent promotional schedules.

I.N’s first solo OST, “Guilty Pleasure,” will be available to stream from 6PM KST on November 2, and Love in Disguise can be streamed on tvN or Prime Video.