Welcome back to the weekly feature of Fashion Friday! It's time to relish again in the fashion trends of influential people around the world. This week's Fashion Friday is dedicated to the dynamic sister duo Bella and Gigi Hadid. These sisters, along with their infamous crew, have taken over the modeling world by storm in the past five years and have brought back the concept of 'supermodels'. Check out just a few of my favorite looks from these two sisters throughout the ages and let me know in the comments below which one is your favorite look!