PHOTOS: Blake Lively Gives Taylor Momsen a Run for Her Money

Usually it's her teen co-star Taylor Momsen making headlines for her lack of pants in public, but at last night's NYC premiere for Sherlock Holmes, it was Blake Lively who was turning heads for showing off a healthy portion of leg. The actress sported a sheer black sorta-dress that left very little to the imagination and highlighted Blake's killer gams.