"KPop Demon Hunters" fans were in for a major surprise Saturday when cast members Rei Ami and Kevin Woo popped up in NYC and led a sing-along to "How It's Done," the intro song to the Netflix hit. The surprise performance was part of a series of "K-Pop Demon Hunters Golden Weekend" events.

The singer-songwriter, who trained to be a K-pop idol before transitioning to songwriting, is finally getting her much-deserved moment in the spotlight thanks to the success of the Netflix animated film and its soundtrack.