Hef's Las Vegas Birthday Bash 2009

For most guys, having your exes show up to your birthday bash would be a buzz kill. For Hugh Hefner, it's always the more the merrier. On the Saturday before his April 9 birthday, Mr. Playboy celebrated his 83rd at the Palms Casino Resort in Vegas with former girlfriends Holly Madison, Kendra Wilkinson and Bridget Marquardt, as well as current girlfriends Crystal Harris and twins Karissa and Kristina Shannon. It was a sexy afternoon pool party thrown by Holly at the Palms Place Pool. Kerry Simon of Simon at Palms Place provided the cake (though we're sad to report it was not the kind with a topless Playmate popping out of it).

That night, Hef and the girls enjoyed dinner at N9NE Steakhouse followed by a visit to the swank Playboy Club, where Hef was serenaded with "Happy Birthday" by club-goers, thanks to Palms owner George Maloof. Wrapping up the night, Hef got one more round of "Happy Birthday" from Holly as she sang to him–Marilyn Monroe-style–at Moon Nightclub. We’d take that over a new tie any day.

Want to wish Hef a happy birthday? Post your own message below, and we’ll make sure he sees it.