Whether it's for a role, a change of image, a fashion statement, or just a whim, it seems celebrities switch up their hairstyles as often as they change outfits. One day they're wearing their natural brown curls, the next they've gone blonde and straight. With a glam squad at their beck and call, not to mention all the trendy hair ideas stylists can come up with, these stars can definitely get any look they could ever dream of!Ariana Grande and Emilia Clarke changed their hair color for their ro