PHOTOS: Hottest stars of summer 2012 sizzle in spotlight
13. Keira Knightley
Credit: Getty Images
LONDON, ENGLAND - JANUARY 31: Actress Keira Knightley attends the "A Dangerous Method" UK Gala film premiere at The Mayfair Hotel on January 31, 2012 in London, England. (Photo by Gareth Cattermole/Getty Images)
