Nico: Today I'm gonna be testing out four temporary hair dyes. I'm somebody who does not ... This is the pinkest pink I think I've ever seen in my life. I've heard of Manic Panic before.

Gigi Hadid just debuted a dramatic new hairstyle, and you may want to get a Pinterest board ready in her honor. The model ...

But if you'd rather try out the trend first, we're huge fans of the Hally Hair Pink Temporary Hair Dye ($10) or the L'Oréal Paris Colorista 1-Day Color Spray ($6), which both can make for a quick ...