A running list of the biggest hair trends of the year. Here are the 10 styles and colours defining 2017. Prev7 of 10Next 7 Cher Hair Ultra-long extensions aren’t going anywhere. We’ve seen them on Rihanna, Jourdan Dunn, and the Kardashians in recent months, and the trend is poised to make an even bigger splash come January. Prev7 of 10Next