billie eilish is actually natural blonde/brown, NOT black - . she seems more serious with black hair

https://www.google.com/search?q=is+billie+eilish+natural+blonde&client=ms-opera-mini-android&channel=new&sxsrf=AOaemvLewHYDAMBCgaZhiw363Kp8_0shGQ:1634297213991&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjAopbHp8zzAhWBFjQIHTv3AUIQ_AUIBigB&biw=360&bih=457