Halloween in Hollywood:
Stars' Best Halloween Costumes
Martha Stewart and Blake Lively
Martha Stewart as Medusa, Blake Lively as Cleopatra, Our Top 20 Favorite Star Halloween Costumes
Evangeline Lilly swept onto the red carpet at The Hobbit: The Desolation of Smaug premiere in a black slightly sheer Alberta Ferretti gown with a lace overlay and tiers of tulle at the skirt, keeping all accessories to a minimum, save for studs and a gold bracelet.