Sarah Jessica Parker Klum Crawford amfAR Gala Pictures

Last night's amfAR gala in NYC brought out a roster of celebrities and models to toast the AIDS-fighting charity on the eve of Fashion Week. Fall 2012 Fashion Week begins today, but there were plenty of gorgeous gowns on display yesterday. Host Sarah Jessica Parker donned a pink Oscar de la Renta gown, which she paired with a leather motorcycle jacket and white gloves while posing for pictures. Leighton Meester broke from filming Gossip Girl to hit the carpet in Louis Vuitton, while other ladies like Julianne Moore, Cindy Crawford, and Elizabeth Hurley wore Roberto Cavalli. Even Leonardo DiCaprio's current squeeze, Erin Heatherton, stepped out in Cavalli. It was Heidi Klum's first public event post-split from husband Seal, and she too wore Cavalli.The guests were treated to dinner, an auction, and performances from Theophilus London and Janelle Monáe.

There were plenty more gorgeous ensembles to check out. Click through to see Alexa Chung, Padma Lakshmi, and Stanley Tucci with fiancé Felicity Blunt. The fashion world was well-represented with Rachel Roy, Liya Kebede, Lily Donaldson, and a pregnant Julia Restoin-Roitfeld. Whose dress do you like best?