The "What Was I Made For?" singer said that her green and black hairstyle felt like her 'career-defining look' ...

ROBYN BECK/AFP via Getty Billie ... favorite hair colors over the years. "Well, I really like to romanticize two specific periods in my life: the green roots and the red roots," Eilish said.

Billie Eilish has rocked more than half ... "That shade of green was like my color for so long. I loved it so much. Hair, nails, clothes. It was such a magical period for me, and it was so intense.

Related: Why Billie Eilish 'Absolutely Hated' Her Name Growing Up Karwai Tang/WireImage Eilish at the BRIT Awards in 2020. "I’d never really seen anything like that before and it felt really nice to ...

Billie Eilish has described her classic green-and-black hairstyle as her ... I'd never really seen anything like that before and it felt really nice to have something that felt like mine. That shade ...