The worlds of K-pop and Hollywood superhero cinema have officially collided. On May 31, 2026, Source Music released CELEBRATION (Supergirl ver.), a special remix by South Korean girl group LE SSERAFIM, created in collaboration with Warner Bros. and DC's upcoming Supergirl movie.
This is one of the more ambitious K-pop-to-Hollywood crossovers in recent memory. The Supergirl version builds on CELEBRATION, a techno and hardstyle track that LE SSERAFIM originally released on April 24, 2026, as the lead single for their upcoming second studio album Pureflow Pt. 1.
The song carries the message that anyone can celebrate reaching a personal milestone, specifically, the moment when one chooses to confront and acknowledge their fears and gains the strength to move forward.
The Supergirl film stars Milly Alcock in the dual role of Kara Zor-El/Supergirl. Directed by Craig Gillespie and written by Ana Nogueira, the film is produced by DC Studios heads James Gunn and Peter Safran, a creative team known for ambitious, character-driven storytelling.
It is set for a global release on June 24, 2026, meaning the Supergirl version of CELEBRATION arrives just weeks ahead of the film, primed to build momentum in Asian markets.
The release is out now on Spotify, Apple Music, and YouTube Music.
