Sydney Sweeney makes headlines at every turn, especially when it comes to her new movie Christy. The biopic follows boxer Christy Martin, and Sydney is turning heads on camera and off. After showing up to the Met Gala with a jet black bob and bangs, and then breaking the internet by responding to bikini body shamers with a video of her intense training, and then breaking the internet again by taking part in a controversial American Eagle jeans ad, Sydney just rocked another drastic hair chang...