Rag Dolls
Cameron Diaz got the party started for fashion week, banquet-dancing at the bash our brother site, Men.Style.com, threw in honor of Rag & Bone's well-received collection. The leggy beauty had missed the show, but rallied late to Tenjune to demonstrate her love for designers David Neville and Marcus Wainwright. A collective gasp went out among the masses when the DJ played Rock Your Body, by her ex, Justin Timberlake, but she mouthed the words and two songs later was bouncing in her seat. Sienna Miller, meanwhile, maintained a relatively low profile. "I'm leaving for London tomorrow," said the actress, who was capping off a whirlwind week of Factory Girl festivities. The packed house also included stylist to the stars Joe Zee, Theory's Andrew Rosen, and the remaining member of Trovata, John Whitledge, who was no slouch himself on the dance floor.

Greek Dressing
Earlier that evening, Sophia Kokosalaki was fêted for her Spring collection for Vionnet at Barneys New York. "When I first arrived, it was overwhelming, but now it is okay," said the Greek-born Londoner as she welcomed the hordes of well-wishers. The mannequins on the store's second floor were dressed in her bias-draped, floor-length confections, while a live model—in the form of Amanda Cutter Brooks—paraded around in a shorter version. "I came in right after the samples arrived and picked this one," she said. "When Sophia got here, she asked where the pink-rose dress was. It was supposed to be in one of the windows."

Party Arty
Painter Sophie Matisse, actress Camilla Belle, and artist Marina Abramovic looked on in amazement at Deitch Projects as the Viennese performing-arts troupe Gelatin strategically built a plywood installation above their dinner table. The Austrians—hammering away in outfits that revealed more than anyone was prepared for—were part of a celebration for Jason Schmidt's Artists exhibition, hosted by Max and Lubov Azria and writer Dodie Kazanjian. Their hard work earned them a standing ovation for the three-hour-long performance. "My feet hurt more than anything," confided a male member of the troupe, pointing to the four-inch heels he was wearing. "I don't know how women do it; I had to practice for three days."

— Sarah Cristobal and Madhu Puri