What's Her Best Look?

Changing hair colors, makeup and cuts is all in a day's work for a celeb. Vote on which style works best for Julianne Moore, Kelly Osbourne and more. By Melissa Liebling-Goldberg

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ALICIA KEYS

The singer rocked a curly do at the Fresh Air Fund Benefit recently, but turned up at Samsung's 6th annual Four Seasons of Hope Gala in N.Y.C. this week with pin-straight hair.