Millie Bobby Brown has mastered the art of reinvention, both in her career and her hair transformations. Since shaving her head for Stranger Things, she has experimented with nearly every shade ...

The dark hair color trend is not just a passing fad ... In contrast, cool undertones feature pink, blue, or red hints, often pairing well with shades like espresso or blue-black.

and pastel pink hair. But perhaps the dye job was only a temporary change in order to promote the product, because the next time Brown popped up on social media, her hair was back to blonde ...