Chá Chá Chá
The Brasileiros were in top form Saturday night as they celebrated the itsy-bitsy, teeny-weeny designs of Rosa Chá at a raucous post-show party sponsored by M.A.C at the Cabanas of the Maritime Hotel. As the likes of Lydia Hearst and Fabien Basabe whooped it up around the evening's hosts—catwalkers Isabeli Fontana and Ana Beatriz Barros and the line's creator, Amir Slama—Paris Hilton and Naomi Campbell huddled in a corner discussing… But that would be telling, wouldn't it? DJ Sky Nellor played throwback hip-hop hits, and New York's Finest made a let's-get-this-party-stopped intervention at 1 a.m. We are absolutely certain that the presence of all those naked models ("clad" only in painted-on bikinis) played no role in the NYPD's decision to show up earlier than usual.

Play on, Playas
The bond between the two Page Six favorites had been established earlier in the night, when Hilton and Campbell stomped the runway at a fashion show for Sony PlayStation portable accessories. Hot on their heels were the omnipresent Helena Christensen, Kirsty Hume, Jacquetta Wheeler, and Alek Wek, while audience members included Lindsay Lohan and Gwen Stefani. Designers such as Fendi, Calvin Klein, J. Mendel, and Martine Sitbon had contributed pieces for the handheld game device.

Fab 5-0
Meanwhile, farther downtown… Diesel creator Renzo Rosso celebrated his 50th birthday with a party for 150 guests at Sky Studios. Diesel power drew Michael Stipe and Dsquared designers Dean and Dan Caten to the event, as well as haute Euro editors ranging from Paris Vogue's Carine Roitfeld to Vogue Italia's Franca Sozzani and The Daily Telegraph's Hilary Alexander. The latter summed up Rosso's appeal: "He's rock 'n' roll, Keith Richards cool," she said. "And that's rare for Italians." As for the man of the hour, he said the real event begins next Wednesday, when he is planning to whisk away close friends to an unknown destination. "We're going to have a wild trip," he said. "Nobody knows where we're going. I just told them to pack a little bit of clothing."

Three, Two, One, Contact!
Kate Moss and her muddled manfriend Pete Doherty popped into Jefferson Hack's sophisticated affair Sunday night for Another Magazine cover star Jodie Foster. The event was hosted by Eric Villency and held at the Accompanied Library in the National Arts Club, and the duo stayed for a brief patch, saying hello to the likes of Mario Sorrenti, Inez van Lamsweerde, Vinoodh Matadin, Angela Lindvall, Natalia Vodianova, and Anouck Lepère (Hack's new flame). "She's a great example of the old style of fame," said the publisher about Foster. "She's almost like an anti-celebrity. For the evening, I wanted to bring a group of people together in a real social situation, like an older person's dinner party. Something between Noël Coward and Quentin Crisp."

Signed, Sealed, Delivered
"No photos, it hurts my eyes," joked Stevie Wonder at the Carlyle as he sat down at the keyboard following wife Kai Milla's show. The supportive husband, who left an L.A. awards event early in order to make it, was not feeling well, so his short set only featured one song—a Nancy Wilson number harmonized by his daughter, Aisha. (And for the record, yes, she is lovely.) The evening, though, belonged to Milla and her sophomore collection. "My style is effortless glamour," she enthused. "I like to connect with people." So no plans for a Radio City extravaganza anytime soon? "No!" she laughed. "I don't think I could ever do that!"

—Sarah Cristobal