Another day, another celeb hair color change.
It seems like every time a star dyes their locks, we have another news story. Sure, it's fascinating to see who will step out of their comfort zone, but, more importantly, it provides us plenty of inspiration for our next look.
Lately, we've seen a crop of stars opt for bold, colorful coifs that beauty bloggers have endearingly dubbed unicorn hair. But it wasn't always purple ombre and pink tips. In decades past, hair coloring was a lot more subtle…and taboo. Keep reading to find out more!