Ever the trendsetter, Gaga seems to be right on the mark with this one going into 2019. The pastel shade was just named one of Pinterest's top 100 trends of 2019 , with searches for "lilac hair" up 1077%. So while 2018 saw pastel pink on the head of many a celebrity, Gaga's setting up lilac hair to make a serious splash. And honestly, it looks so damn good on her.