Leighton Meester stopped by The Late Show in NYC last night to film an interview that will air Friday — shop her look here. She was then off to the premiere of the fashion documentary The Day Before to party alongside Rachel Zoe, who was making the party rounds before Fashion Week starts. Leighton has been busy preparing for next week's premiere of Gossip Girl, but she's also recently been twittering about her time in the recording studio. You guys are digging the leaked tracks you've already heard from her forthcoming album, and she'll be at Sunday's MTV VMAs to support her collaboration with Cobra Starship.

More pictures of Leighton if you