Billie Eilish Blue Hair. Because you’re curious to know, here are all 14 hair colors billie eilish has had so much gray, so much blue! As seen in a tiktok video, eilish made it clear to fans that it wasn't her natural hair when lifting up the wig from the front.
Billie eilish went through shades of silver and blue before settling for neon roots in 2019. Eilish had different shades of vibrant blue in her hair in 2018.