Stars' Day-to-Night Style

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

HILARY DUFF

Hilary hit the gym in L.A. May 11 in neon sneakers and a high pony. She showed off the results of her workout at a party that night, baring her toned arms and legs in a Diane Von Furstenberg top, belted skirt and nude pumps.