Stars' Day-to-Night Style

Reese Witherspoon, Kristin Wiig, Vanessa Hudgens and more rock changing styles as the sun sets

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GWEN STEFANI

Though the star is perpetually glam, wearing red lips and cat-eye sunglasses with her belly-baring ensemble to hit the beach in Cannes on May 20, she dialed up the look for evening by sporting a major smoky eye and sleek Armani Privé gown to the premiere of This Must Be The Place.