Demi Lovato is a hair chameleon, hands down. Since making her debut as a Disney Channel starlet many moons ago, Demi has tested just about every single hair color under the sun...so it's *almost* hard to keep track of them all. But since today's your lucky day, I've taken out the hard work of you combing through her looks for hairspo and compiled it here for your viewing pleasure. You're welcome, BB!