Joe Coomber/Sipa

WHAT SHE WORE Rossum celebrated the grand opening of The Cosmopolitan of Las Vegas in a formfitting blush Julien Macdonald cocktail dress with gold Jimmy Choo sandals, a Misela clutch and Carla Amorim jewelry.

WHY WE LOVE IT What a way to kick off the new year! Rossum looked stunning and sexy in a perfectly tailored fringe design.
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Emmy Rossum

Emmy Rossum in Julien Macdonald