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 Sophia Bush, Jessica Simpson and more. By Melissa Liebling-Goldberg

Credit: Shutterbug/Most Wanted/Flynet; Jean Catuffe/INF

Updated: Thursday May 31, 2007 | 06:00 AM EDT

NICOLE RICHIE

The Simple Life star has kept her honey-colored hair long for the past few months, only to debut a lighter blonde bob at the Race to Erase MS gala this past weekend.