Stars' Day-to-Night Style

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

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JENNIFER LOPEZ

PEOPLE's most beautiful person doesn't take time off from looking great! She's as equally polished in her ivory dress-and-jacket ensemble and silver pumps strolling around N.Y.C. on May 2 as she is in her fuchsia Gucci frock and floral bolero at the Met Gala later that evening.