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Ten years ago at the 2008 MTV Video Music Awards, Katy Perry stepped onto the red carpet looking more like a '50s pinup girl than an up-and-coming pop superstar. The halter top and hot pants combo she wore was right up her quirky alley, but she would soon prove there was so much more to her style than just costume-y red carpet outfits.

Now, several VMAs, Grammys, and Met Galas later, we all know Katy not only as one of the most successful and highest-paid artists in the industry, but also as a style chameleon who electrifies any red carpet. From retro to punk to ultra glam, she's proven time and again that she can rock any outfit!

Here's a look back at her style evolution.