From covering Lady Gaga’s “Poker Face” to sharing the living room stage with Taylor Swift, Weezer’s front man Rivers Cuomo seems to enjoy cozying up to cute pop stars as of late. Cuomo has now moved on to aspiring pop princesses, like Leighton Meester.

During an All Hallow’s Eve show in New York, the Gossip Girl actress performed a supposedly-spontaneous duet for the band’s latest single,  “(If You’re Wondering If I Want You To) I Want You To.”

While her voice is lost in the video (who wouldn’t be intimidated?), I’m more concerned about her multi-colored leggings, sci-fi-inspired jacket, and Amy Winehouse hair.