Holly in Catfight at Hef's Birthday

Hugh Hefner reunited with his ex-girlfriends this weekend at his 83rd birthday bash in Las Vegas—and one of them got into a cyber catfight. When a reporter—who also dated Holly Madison’s former flame Criss Angel—called Hefner ex and party host Madison a “bad interview” via Twitter, Madison was quick to blog that the “older” reporter must be “desperate for ratings,” Perez Hilton writes.

But it wasn’t all drama: “As you can tell I am very, very happy,” Hefner told Fox News. “To celebrate my birthday with new girlfriends and former girlfriends is perfect.” Madison and her Girls Next Door co-stars Kendra Wilkinson and Bridget Marquardt presented Hef with a cake, and even got along with his new ladies. Says Hef: “Surrounding myself with beautiful women keeps me young.” (More celebrity stories.)