Broke and on the brink of giving up, the glam siren almost let Hollywood get the best of her. One hit album later, she’s hell-bent on owning the place.

Katy Perry knows how to make an entrance. At last year’s MTV Europe Music Awards, she hit the stage in a football uniform while straddling a gigantic tube of lip balm. At her last birthday party, she arrived dressed as iconic musician Freddie Mercury, complete with flamboyant mustache and fake bad teeth. And at her Cosmo photo shoot, the 24-year-old stunner gives everyone a doe-eyed wink as she struts straight to—where else?—the stereo and cranks Lindsay Lohan’s “Bossy.”

It’s an apt choice, since there’s no doubt Katy is in charge. She’s rocking 5-inch Emilio Pucci heels and striking poses so fast, the camera barely keeps up.

But Katy’s path to fame was far bumpier than her glamtastic image lets on…

Get the rest of Katy Perry’s exclusive cover interview in the August 2009 issue of Cosmo, on stands now!

About Katy’s Star Style:
*Is that really her?! Check out her fashion makeover in our Star Style Evolution slideshow.
*Plus, scroll down to see an awesome behind-the-scenes video about Katy’s fun, fearless fashion!

Fun Fearless Fashion: Katy reveals her star style and fabulous fashion sense…

But wait, there’s more! Check out more behind-the-scenes footage of Katy’s Cosmo cover shoot!

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