When Britney Spears got her first big break in the late '90s, she was a fashion and beauty ~icon~ to tweens and teens (and adults, let's be real) everywhere. And I, for one, was always impressed by how much she mixed it up. Bangs! Pigtails! Extensions! Fedoras! If there's a style or accessory that exists on this sweet earth, Brit has tried it. Don't worry, of course I've done the photo research to prove it. Please enjoy Britney's hair evolution throughout her career, from the early days of ...Baby One More Time to her Vegas residency. Some styles you'll def remember and love, while others are, um, better left in the past (looking at you, cheesy prom curls).