What's the deal with slicked-back hair? Kim Kardashian, Kendall Jenner, Rihanna, Gigi Hadid, Kristen Stewart, and Jennifer Lawrence have already modeled this hairstyle - looking all sophisticated and gorgeous. They scream ~confidence ~ and they all look ready to flaunt themselves on the runway. However, this hairstyle may look scary to some individuals -worried it might not suit their face sh …