{blackbabes} Onboard b-day

Naomi Campbell ushered in her 41st birthday in Capri onboard boyfriend Vladimir Doronin's monster yacht. But she might not have been expecting the festivities -- sources say the Russian billionaire was planning a surprise bash Saturday night for Campbell with a small group of friends including Leonardo DiCaprio. While Campbell's rep denied there was a birthday bash, we're also told that she and Doronin partied with Courtney Love, Sean Penn, Kanye West and hundreds of others Friday night in Cannes after the amFAR Gala at Richie Akiva's rented mansion.