Lady GaGa On Gossip Girl

Lady GaGa appeared on Monday's episode of Gossip Girl, singing her new single, "Bad Romance."

Dan Humphrey (Penn Badgley) and Olivia Burke (Hilary Duff) are allowed to preview one of GaGa's "dress rehearsals" in the episode, which is as theatrical and over-the-top as you'd expect.

Most of the clip below is the two characters arguing over whatever drama they've got going on between them (I don't watch the show, so I have no idea), but a good portion of it is GaGa doing her "la la ooh ga ga" thing to a cheering audience.

You can watch GaGa's video for "Bad Romance" here.