Carey Mulligan accepted Harper's Bazaar's Best Dressed Woman of 2010 award wearing this Preen number. Sienna Miller glammed it up in Stella McCartney. We had to include one of our faves Alexa Chung because it's her birthday! And she looked adorable in a Margaret Howell sweater, 3.1 Phillip Lim shorts and Prada shoes. Sarah Jessica Parker looked put together in Ralph Lauren at his party for Gloria Vanderbilt. Finally, Natalia Vodianova, despite hairy legs, looked perfect in this Balmain.