Jack and Laz's Inn Crowd
It was all about letting loose at the Beatrice Inn Wednesday night, where Proenza Schouler hosted their sweet and low-key after-party. After a week in which he and labelmate Lazaro Hernandez not only presented Fall but also previewed their Target line, Jack McCollough breathed a huge sigh of relief: "I'm so glad it's all over." Keeping to a banquette in the back room was a platinum-blonde Mary-Kate Olsen, while out front Barbara Bush reminisced about her days interning for the designers. "I miss working for them a lot because it was such a good atmosphere with such great people," she said. "But, I feel like I see them enough that it's okay we don't work together."

Off the Field
Over at Joe's Pub, the Y-3 after-party was abuzz with the presence of soccer star Zinédine Zidane. "He's here?" gasped an incredulous Fabiola Beracasa. "Get out of my way, girl. I'm going to go say hi to him." The socialite ran over to his table, but not without calling out, "He speaks French, right?"

Hot Rod
"Mazel tov," Claire Danes said the previous night at the ever-popular Rose Bar, clinking Champagne flutes with fellow actress Rachel Weisz and man-of-the-moment Narciso Rodriguez. Toasts from supporters like Jessica Seinfeld and Julianna Margulies were so plentiful that it was an hour into the party before the designer was able to take off his coat and sit down. "They tell me [my show] went great, but I haven't seen it yet," he said. "I can't wait to see the DVD."

Philosophical Approach
Over at Café Cluny, Alberta Ferretti celebrated the first New York showing of her Philosophy collection with an intimate dinner for a group including Paz de la Huerta, Tabitha Simmons and Craig McDean, Rachel Zoe, and Olivia Palermo. "I have four more weeks of this," said Vogue's Hamish Bowles about the upcoming European fashion schedule. "London and Paris are okay; it's Milan that's tough." Actress Nora Zehetner sympathized: "I love clothes but can't imagine running around at the shows!"

Teen Beat
Whether it was the glow of pregnancy, the sweeping views from the penthouse of The Hotel on Rivington, or the prospect of boarding a flight for Costa Rica the next day, Luella Bartley couldn't keep her excitement to herself at the party Teen Vogue threw for her Tuesday night. "I'm expecting a baby boy in May," she said, "and I've never felt so inspired." There were also plenty of young muses around to spark the Brit designer's creativity, including Camilla Belle and Leigh Lezark. But what really had the crowd talking was Tom Travis, the 18-year-old deejay that editor in chief Amy Astley had imported from London. For all his youth, Travis is a quick study. "When I found out I was coming to fashion week," he said, "I started reading Style.com during lunch so I could catch up."