Hollywood's Backless Dress Frenzy

Renee Zellweger showed off her super-slim figure in a sheer backless Carolina Herrera gown for The Metropolitan Museum of Art annual gala. The gown's deep V in the back drew attention to Zellweger's bony shoulder blades and muscled back. Perhaps it caught the eye of ex-boyfriend Bradley Cooper, who also attended the gala with mom Gloria. (AP Photo/Getty Images)