Last Night's Look: Love it or Leave it?Check out the head-turning outfits Katie Holmes, Fergie and more stars were just spotted in! Then decide – fabulous or fashion fail?

MILA KUNIS

Leaving her hippie costumes on set, the actress slips into something a bit sexier: a formfitting LBD, plus gunmetal Roger Vivier T-strap heels and Tiffany & Co. jewels, for the Guys Choice Awards in Culver City.