Red carpet reign: The best-dressed A-list beauties of 2012

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Red carpet reign: The best-dressed A-list beauties of 2012

Keira Knightley showed off her breaktaking beauty at the LA premiere of Anna Karenina, wearing a light green Erdem dress. The stunning, floor-length creation, which bared her defined collar-bones with its sweetheart neckline, featured blue and white detailing that made for a super elegant touch