Some 400 women gathered yesterday at New York-Presbyterian/Weill Cornell's Department of Obstetrics & Gynecology's annual fashion show fundraiser at Cipriani to support a cause and peruse Badgley Mischka's Fall 2008 collection. After lunch, the design duo trotted out looks inspired by the edgy seventies glamour of Bianca Jagger. "A lot of layering, a big focus on our accessories this season. It's such an important season for costume jewelry and hats," James Mischka said backstage. "[Bianca] dressed really beautifully, but she's also very sexy and a little bit of a rebel at the same time." Case in point: "I remember we did a bridal collection for Bergdorf Goodman and she bought some of the bridal dresses as evening gowns."