We have a lot of things we're thankful for this year, and Cobra Starship is definitely on the list. You'd be surprised by how often "Good Girls Go Bad" comes up on our Pandora Station. (For real. Think of a high number. Now think of a higher one. That's how often.) Tuesday night, Leighton Meester joined the band at the Nylon Magazine after-party for the OP Fall Music tour at 1Oak.

Leighton made a surprise performance appearance with the band earlier in the night at the Nokia Theater in Times Square. Other revelers at the afterparty included DJ Josh Madden and Boys Like Girls.