Stunner Coco Rocha
is one of the most successful new models around, having walked the runway for big brands like Stella McCartney
-- and she both opened and closed Marc Jacobs
' 2006 show. She's also been the face of Balenciaga, Dior and Yves Saint Laurent. The 21-year-old has distinguished herself further by speaking out against the huge number of eating disorders in the fashion world.