SEOUL - Supergirl (2026), the upcoming entry in DC Studios’ rebooted superhero slate, is the latest Hollywood title to boast a K-pop tie-in.

Warner Bros. Korea said on June 2 that the movie will open in South Korean theatres on June 24, two days ahead of its North American bow and the same day as Singapore’s release.

Directed by Australian film director Craig Gillespie, it stars Australian actress Milly Alcock as Kara Zor-El, Superman’s cousin and the film’s title hero, and American actor Jason Momoa as the bounty hunter Lobo.

For a sizable slice of viewers, though, the bigger draw might be the soundtrack. The project has been generating buzz for featuring a collaboration with K-pop girl group Le Sserafim.

The partnership was first revealed on May 31 when Source Music released a remix of Celebration, the lead single off Le Sserafim’s second album Pureflow Pt. 1, which was released on May 22.

The track keeps the original’s hook but hits harder, with faster beats and a glossier pop finish built for the big screen. Its lyrics about finding the courage to face down fear also seemed to line up with Supergirl’s arc.

What was left unsaid was how the track would figure into the movie itself. In soundtrack deals, a tie-in single doesn’t always make it into the film, and the version that does can differ from the one sold to fans.

The recent collaboration with K-pop girl group Twice on the Netflix animated feature KPop Demon Hunters (2025) is a good example. The track Takedown heard in the movie came from the story’s voice cast, while the Twice recording ran over the end credits and was listed separately on the soundtrack album.

At least a hint of an answer came late on June 1, in a promo clip Warner Bros. Korea posted to its social channels featuring the group. There, Le Sserafim members confirmed the song does play in the movie, though they stopped short of saying exactly where.

“You won’t know where it shows up, so stay till the end and...