Marc Malkin

I was the first to tell you that Ellen DeGeneres was going to have a big birthday party Saturday night.

Well, she did. And the guest list at the Warner Bros. studio lot's carnival- and casino-themed soirée was star-studded...

Among the 600 or so well-wishers were newlyweds Mariah Carey and Nick Cannon, Janet Jackson, Jonas Brothers, Tom Hanks and Rita Wilson, Allison Janney, T.R. Knight, Ray Romano, Joely Fisher, Gwen Stefani and Gavin Rossdale, Paris and Nicky Hilton with their boyfriends Benji Madden and David Katzenberg and, of course, DeGeneres' girlfriend, Portia de Rossi.

Pink performed three acoustic numbers, including Janis Joplin’s “Me and Bobby McGee,” Samantha Ronson deejayed and there was a fireworks display. The menu included sushi from Sushi Roku, Pinkberry and Fry Girl doughnuts.

No press were allowed, but DeGeneres will pimp out her party by airing highlights of it on her show later this week.