Everyone wants a big blowout for their birthday, but Naomi Campbell celebrated turning 38 with what appears to be a big blowup with Sean "Diddy" Combs. The supermodel celebrated with friends in Cannes and then went to a VIP party on Diddy's yacht. Around 3 a.m., the birthday girl left the party near tears, hiding her face and clearly looking upset. It's not certain what made Naomi so unhappy, but the catwalker and the music mogul have a history of dustups. Last year, at a Grammy after-party in LA, Diddy reportedly yelled at Naomi during the middle of the party. Diddy, that's no way to treat the birthday girl!