Jessica Biel showed up at a screening of "Easy Virtue" in New York City last night wearing a gown that showed off her toned upper body. We want to know her secret to staying so fit!

What do you think of Jessica's look? Let us know in the comments!

Image © Janet Mayer / PR Photos

Image © Janet Mayer / PR Photos

Image © Janet Mayer / PR Photos

(This news article provided by World Entertainment News Network)