There are a kabillion reasons whyBillie Eilishis undeniably, effortlessly, enviably cool.

And it turns out she’s been a hair-color icon since her first double-digits year.

(More cool points.)

Billie Eilish smiling at the Barbie premiere

Getty Images

In fact, that song is the reason she posted the videos in the first place.

“UGHHDKSLDJSKFJKSKFUDJSKKFKDKDK dream come truEEEEEE@paramorewaaahhhhhhhhhhhhhhhhhh i love you so much hayley holy shit.

wish i could tell tiny me,” she wrote in the caption.

Screen grab of 10yearold Billie Eilish with dip dyed blue hair

Instagram/Billie Eilish

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More hair color inspiration:

Now watch Lindsay Lohan break down her looks fromMean Girls,Freaky Fridayand more: