Blake Lively

Her Look: The Gossip Girl star and rumored new girlfriend of Leonardo DiCaprio is not afraid to show off her assets. This fitted Michael Kors dress is such a classic choice as it accentuates her curvy chest and her legs, without being over-the-top.

Your Look: If your dress is fitted and body-conscious like Blake's, we say avoid plunging necklines ... especially for daytime wear. And remember that sometimes a knee length pencil skirt is just as sexy as a mini.