Popsugar Beauty Billie Eilish Billie Eilish's Best Hair Colors Over the Years Billie Eilish Is the Hair Color Icon We Didn't Know We Needed March 17, 2021 by Jesa Marie Calaor View On One Page Photo 2 of 11 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by BILLIE EILISH (@wherearetheavocados) on Oct 1, 2017 at 8:48pm PDT Share This Link Copy ← Use Arrow Keys → 2 Billie Eilish With Smoky Gray Hair in 2017 Eilish wore her smoky gray hair straight in a headshot she posed for in 2017. Previous Next Start Slideshow Billie EilishCelebrity HairHairHair Color