Who It's For: light brown or dark blonde color treated and natural hair Customer Review: "It works best if you leave it on for 2-5 minutes in my experience (for light brunettes).

Many stars have switched up their hair by going from light to dark, or vice versa. While not many can pull off drastic ...

Fox also sported blue hair while attending her beau Machine Gun Kelly’s 34th birthday party last month. The actress shared photos of her striking look for the occasion on Instagram on April 24.