Katy Perry August 2009 Cosmo Cover girl

24-year-old “I Kissed A Girl” Katy Perry graces the cover of Cosmopolitan August 2009 issue.

The mag writes, “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.’”