Billie Eilish's Brother Finneas Says Her Blonde Hair Shows Her Evolution

Billie Eilish traded in her iconic green hair for blonde locks to demonstrate her evolution as a person and an artist … so says her big brother.

We got Finneas O’Connell leaving Blue Bottle Coffee in Los Angeles and asked about the big hair change, and why it’s such a big deal for her fans.

Finneas, who co-wrote and produced most of Billie’s tracks on her debut album, says a new hairstyle is one of the easiest ways to change your persona … and he says Billie did it because she’s growing.

Remember, Billie’s only 19 and she’s already snagged 7 Grammys … so she’s already done A LOT of maturing, and it sounds like the image now needs to match the accomplishments.