Kardashian works her hips with a hula hoop at an Old Navy event in Los Angeles. Plus: Mary-Kate Olsen, Nicole Richie, Rob Pattinson and more


French actress Marion Cotillard, the face of the latest Lady Dior campaign, and Hilary Duff make a fashionable team at a ceremony to announce the winner of the Bike in Style challenge Tuesday at the LVMH Tower in New York City. The contest, sponsored by LVMH Moët Hennessy Louis Vuitton, tasked student designers with creating stylish bike clothing.