Rainbow hair is becoming one of the biggest trends for women's hairstyles in 2015. Hair color that was once only the domain of punk rockers and stars like Nicki Minaj, Christina Aguilera and Katy Perry is now the favorite color of many modern mermaids.
One of the hottest trends for hairstyles 2015 right now is definitely rainbow hair color. Although we don't see modern mermaids at every turn, the trend is ubiquitous on the internet, where we've seen quite a few examples of pastel-colored hairstyles in all shades of the rainbow.
READ MORE: Trend: Women's fashion hairstyles 2015