Le Sserafim Supergirl OST: ‘Celebration’ Remix Hits June 24 Film
Le Sserafim Supergirl news just landed: the group’s “Celebration” gets a cinema-tuned remix placed inside Warner Bros./DC’s “Supergirl,” which opens in Korean theaters June 24, 2026 — two days ahead of its North American release. Source Music unveiled the remix on Sunday, and Warner Bros. Korea confirmed the placement in a promotional clip. It’s the latest sign that K-pop is moving from soundtrack footnote to deliberate Hollywood casting choice.
What the Le Sserafim Supergirl tie-in includes

Per Korea Herald’s coverage, the details:
- The song: a remix of “Celebration,” the lead single from Le Sserafim’s second album (released May 22, 2026)
- Reveal: unveiled Sunday by Source Music
- The film: “Supergirl,” directed by Craig Gillespie, distributed by Warner Bros./DC Studios, starring Milly Alcock as Kara Zor-El and Jason Momoa as Lobo
- Korea release: June 24, 2026 — two days before the North American opening
- The remix: keeps the original hook but adds faster beats and a glossier, cinema-optimized finish; lyrics about overcoming fear mirror the protagonist’s arc
- Confirmation: Warner Bros. Korea’s promo clip confirms the song appears in the film; member Yunjin teased, “stay till the end and keep your ears open”
The thematic fit is the interesting part. “Celebration” is a confidence anthem, and pairing a song about pushing past fear with a hero’s origin arc is a deliberate sync, not a random licensing grab. That alignment — song message to character journey — is how Hollywood music supervisors actually choose placements.
Why the Le Sserafim Supergirl placement matters

K-pop’s Hollywood integration has been accelerating, and this fits a clear pattern. It follows Twice’s higher-profile work on Netflix’s animated “KPop Demon Hunters,” whose track “Takedown” charted on the Billboard Hot 100. The Supergirl tie-in shows the opportunity widening — Korean artists landing in major live-action studio tentpoles, not just animated or K-themed projects.
The Korea-first release date is its own signal. Opening “Supergirl” in Korea two days before North America is a distribution choice that treats the Korean market as a priority launch territory, not an afterthought — and a homegrown K-pop placement amplifies the local marketing hook. Warner Bros. gets a built-in promotional engine; Le Sserafim gets a global film credit. Both sides win.
For Le Sserafim specifically, it extends an aggressive Western push. The group has leaned into English-language tracks, US festival slots, and Western fashion partnerships. A DC tentpole soundtrack credit is the kind of mainstream-crossover line that broadens reach beyond the existing fanbase — exactly the audience a film tie-in is built to reach.
What to watch with the Le Sserafim Supergirl release
- Korea premiere: June 24, 2026 in theaters; North America June 26
- Where to hear it: the remix placement is a “stay through the film” Easter egg per Yunjin — exact scene undisclosed
- Charts to watch: whether the “Celebration” remix gets a standalone digital release and how it performs after the film opens
- Context viewing: Netflix’s “KPop Demon Hunters” and Twice’s “Takedown” for the most direct precedent
- Bigger picture: watch for more K-pop placements in Western live-action studio films through late 2026
The bottom line
The Le Sserafim Supergirl placement is a small song with a big signal — a K-pop group landing inside a Warner Bros./DC tentpole, with Korea getting the film first. It’s incremental, but it’s the kind of mainstream crossover that compounds. Track K-pop’s Hollywood crossovers, OST placements, and release news in our K-Pop & Drama News section.