Last Night's Look: Love It or Leave It?Check out the head-turning outfits Kristen Stewart, Halle Berry and more stars were just spotted in! Then decide – fabulous or fashion fail!

CHRISTINA HENDRICKS

Setting the bar high for all her future red carpet appearances, the Mad Men star is ultra-glam in a criss-cross black empire waist gown and a stunning Chopard necklace at the grand opening of the Chopard store at the Wynn Las Vegas.