Popsugar Beauty Hair Demi Lovato Debuts Green Dip-Dyed Hair on Instagram Judging by Demi Lovato's New Neon Green Hair, She's Taking Tips From Billie Eilish 12 September 2019 by Tori Crowther View On One Page Photo 1 of 2 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Demi Lovato With Neon Green Hair Previous Next Start Slideshow HairHair ColourCelebrity HairDemi Lovato