Style Watch PollWhat'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
Credit: Justin Campbell/Startraks; Rodrigo Varela/Wireimage
Updated: Wednesday Jan 04, 2012 | 01:30 PM EST By: Justine Harman
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DEMI LOVATO
Though she Tweeted that she was "bummed that my red hair didn't stay very well," the singer's vibrant new hue is a marked contrast to her formerly chocolate locks.
