What's Her Best Hair?

See the stars' latest cuts and color changes – and then vote on which hairstyle suits Cameron Diaz, Kim Kardashian and more

  • MICHELLE MONAGHAN photo | Michelle Monaghan

Credit: John Shearer/Getty; Jason Merritt/Getty

Updated: Wednesday Jan 04, 2012 | 01:30 PM EST By: Justine Harman

MICHELLE MONAGHAN

The chameleon-like actress proves she's equally versatile off screen, seamlessly transitioning from chocolate brown to a deep copper fringe.