Oh, how Rachel Bilson has changed rom "that girl from 'The O.C.'" to "that girl in the amazing dress," she's gained quite the rep as a reliably well-dressed red carpet-cruiser. Have a look at Rachel's best-ever looks, as well as the occasional stumble.
Take this leopard-print Roberto Cavali gown, which Bilson wore to the designer's 40th anniversary party in 2010. It's sleek and show-stoppingly sexy.