Marc Jacobs Star-Packed After Party

TMZ set up shop outside the Marc Jacobs fashion show after party in NY last night, where the guest list was off the hook.

Paris and Nicky Hilton brought their usual gang of hangers-on to the shindig, including "Greasy Bear" himself, Brandon Davis.
Rocker Travis Barker also hit the event, along with "Wild 'N Out" star Nick Cannon, Lil' Kim, Jared Leto, hip-hop star Kanye West, tennis beauty Serena Williams and R&B sensation Usher.