Chvrches gave a fun-as-hell performance of their great Every Open Eye single “Clearest Blue” on The Late Late Show With James Corden last month, but it turns out that that wasn’t the only performance frontwoman Lauren Mayberry gave that night. She also busted out a goofy Cher impression backstage, singing a bit of the star’s 1998 hit “Believe” after some prompting from her bandmates. “See, we did karaoke for Iain’s birthday, and I can’t tell if my Cher was actually really good or whether we were just a wee bit smashed,” as Mayberry says. Decide for yourself below.