After KATSEYE went viral for not knowing any Mariah Carey songs, the group spent Halloween 2025 repenting the only way they could: dressing as Mariah. A look at the iconic music videos and moments behind each of their Mariah-oween costumes.

And as a bonus, Megan Skiendiel’s Heartbreaker look takes us behind Mariah Carey and JAY-Z’s “Heartbreaker”, one of the most expensive music videos ever made