India, Aug. 4 -- If there's one animated movie K-pop fans can't stop talking about this year, it's KPop Demon Hunters. The Netflix original has quickly become a global sensation that's kept audiences hooked since its release. The film, which dropped just over a month ago, has been topping charts across music and entertainment platforms. It follows the lives of HUNTR/X, a girl group that moonlights as demon slayers, and their secret enemies, the Saja Boys - a boy band of demons disguised as idols. It's the ultimate fanfiction come to life, and it turns out, real K-pop stars had more to do with it than we thought.

As fans began spotting familiar moves and expressions, the film's creators finally confirmed what many suspected: real idols we...