Billie Eilish just shut down the haters who have a problem with her signature neon green hair. The "Bad Guy" singer-songwriter, 19, who's become known for rocking the statement-making lime green ...

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's blonde hair ... out if you keep making fun of my hair. Shut up!' Billie is known for playing with her fashion, but has mostly kept a neon green style with black tips for the ...

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

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.