She turned bubblegum pop on its head. She made dressing like a manga princess/geisha/cupcake/cyber-goth not only cool, but totally within the realms of reality. And, she's had more hair colours than the Spice Girls have had hits - which in and of itself is worth applauding. And it's too Katy Perry that we direct our props; a woman with as much energy on a Duracell bunny (she's about to embark on her next tour, entitled The Prismatic World Tour).

Here, we chart Katy Perry's most memorable, eye-catching hair and make-up looks since she burst onto the scene in 2004.