Looks like bright blue hair is the new beauty trend (in young Hollywood at least)! Kylie Jenner recently dyed the bottom layer of her hair blue, but singer Demi Lovato really went the extra mile and colored her entire head blue. Perhaps the bold new look has a little something to do with her latest single, Neon Lights. Hmm, we think it makes perfect sense. And we have to give it to Demi, she can actually pull crazy colors like all over blue off.