TALK about a star studded birthday Friend to celebrities, Christian Audigier hosted his 50th birthday party last night at L.A.'s Petersen Automotive Museum. It was so star studded that Michael Jackson even showed up Britney Spears attended the party with her girlfriends but don't worry because her dad wasn't too far behind. Britney sat with her two girlfriends in the VIP area wearing a short black tube dress looking as if she was having a great time. Britney stayed about an hour and decided to call it a night. She left right before the King of Pop came to the party. There were special performances by Fergie and Macy Gray. - Hollyscoop