Cobra Starship appeared on Late Night with Conan O'Brien last night, performing their hit single, "Good Girls Go Bad." But lead singer Gabe Saporta's fave gal, Leighton Meester, wasn't there!
Um, did Cobra just ditch the Gossip Girl star? No way! Leighton's shooting GG in New York City, but Conan films in Los Angeles. So what's a band to do? Have R&B singer Estelle fill in, of course! Check out the vid of her singing with Cobra below.
Who do you think sings "Good Girls Go Bad" better -- Leighton Meester or Estelle?