Across the pond in Paris, former "O.C." star Rachel Bilson celebrated Roberto Cavalli's 40 years in the fashion industry by wearing one of the legendary designer's leopard-print gowns to his fabulous fete, held at Ecole Nationale Superieure des Beaux-Arts. Dominique Charriau/WireImage.com - September 29, 2010
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Lauren Conrad and Milla Jovovich look lovely in lace.