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 2 of 2 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Demi Lovato's With Green Nails Previous Next Start Slideshow HairHair ColourCelebrity HairDemi Lovato