Last Night's Look: Love It or Leave It?Check out the head-turning outfits Selena Gomez, Heidi Klum and more stars were just spotted in! Then decide – fabulous or fashion faux pas?

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BROOKLYN DECKER

Punching up a purple long-sleeve frock with studded slate booties, collar necklace and messy topknot, the Battleship beauty promotes her action flick at Sin City's CinemaCon.