Popsugar Beauty Celebrity Hair Demi Lovato's Hair Color Evolution Demi Lovato Ditched Brunette Hair For a Teal-Blue Hue October 6, 2014 by Marina Liao View On One Page Photo 7 of 13 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 December 2013 Demi sported a deep shade of blue in December 2013 with pieces of sky blue mixed in. Previous Next Start Slideshow Demi LovatoInstagramCelebrity HairHairHair Color