Design talent wasn't just on the runway at Diane von Furstenberg's show—it was sitting front row, too. Valentino Garavani—fresh off his karaoke turn singing "Unforgettable" at Carine Roitfeld's party on Saturday night—sat in the front row (at far right) not far from the designer's husband, Barry Diller (chairman of IAC, an owner of The Newsweek/Daily Beast Company), actress Susan Sarandon, and designer Oscar de la Renta, who will present his own womenswear collection this week. The notable front row rushed backstage after the show—where they surrounded the designer and offered congratulations. As Sarandon told us backstage, "Diane makes things you can actually have breasts and wear." For Sarandon, though, the mood of the day was a sad one, as she remembered 9/11. "The flags [von Furstenberg gave out at the end of the show] were a good way of remembering this day," she said. "It was a way to dedicate to living a full life." Later that night, a couple hundred of the designer's nearest and dearest, among them Sarandon, Italian Vogue editor Franca Sozzani, photographer Ellen von Unwerth, and artist Anh Duong headed to Indochine for a dinner celebrating the collection. Mayor Bloomberg also was in the house, and gave a toast to von Furstenberg—in which he praised her for her work at the CFDA (an office she continues to hold "because no one else wants it"), joked about the pronunciation of her name ("Diane? Dion?"), and said, "I have never worn one of her iconic wrap dresses, and if I had, I wouldn't tell you about it." From there, von Furstenberg took to the microphone and paid tribute to the mayor ("he listens; he talks a lot, but he listens"), and explained why she hadn't changed the date of her show this year. "I've always had my show on Sunday of Fashion Week, so every seven years we have it on September 11, and as the president of the CFDA I felt it wouldn't be fair to change it and f--k it up for everybody else." How's that for candor?