Rihanna went from a glamorous Hollywood bob to what's basically a swept forward mohawk -- catapulting her to instant style-icon status. Now her haircut's practically more famous than she is. (Jennifer Aniston can relate.)
Jessica is gorgeous in both her platinum blonde after and natural brunette before shots. Normally we'd be jealous of someone who can effortlessly pull off such different hues but we're not that petty.
Katie's friendship with Victoria Beckham is influencing her in many ways -- particularly her Posh-inspired bob. Katie looked youthful and romantic with a long layered 'do but we also love her chic chin-length bob, which has spawned numerous copycats.
Hilary can't seem to make up her mind between a youthful golden blonde or a more mature chestnut hue. It seems she's gone back to her "Lizzie Maguire" look, but we're fine with that; she's got plenty of time to look "grown-up."
Some celebrities must spend their lives in the salon -- when they're not walking the red carpet or being harassed by paparazzi at Starbucks, of course. They go from blonde to brunette, long to cropped and back again (thanks to extensions!). Check out these celebs' changes -- did they make the right move or should they fire their stylists stat?
