Katy Perry's Hairstyle Evolution (PHOTOS)
Katy Perry changed her hair ... and we like it. Despite rocking a blonde 'do at the Smurfs premiere last week, the "Firework" singer has already dyed her hair another color: pink!
Katy is known for her dark, luscious locks, but lately she's been switching up her hair color like its going out of style. And when it comes to hair, Perry has tried on pretty much everything -- even ridiculous blue wigs. Can't keep up with her ever-changing locks? Take a look through the gallery and see her hair evolution.