Best-Dressed Celebrities Week of January 2, 2012

This Week's Best Dressed

Michelle Williams

>> The week was full of stunners: Michelle Williams in Jason Wu, Alexa Chung in Marc Jacobs, and Emily Blunt in Marios Schwab. But the real star of the week? Rooney Mara, who dazzled her way across Europe in a storm of Pre-Fall 2012 gorgeousness. See all those — plus looks from Rachel Weisz, Emmy Rossum, Rosie Huntington-Whiteley, and more — here.

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