It's called "Unicorn Hair Color" and it's proven to be quite popular in recent years.
Brazen celebrities including Kate Bosworth, Avril Lavigne, Carrie Underwood, Pink and Rihanna have hit the red carpet in streaks, bright dyes, washes of pastels and dip-dye looks. For inspiration (or simply pure entertainment), see these celebrities and others in this photo gallery. I had a blast pulling it together for you.
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