Katy Perry launches Purr, her first fragrance. Sweet!

katy-perry-naked-teenage-dream.jpg Katy Perry revealed the cover of her sweet second album, "Teenage Dream," this week. And coincidentally, she's also announcing her brand new fragrance called Purr.

On the album cover (due out next month), reminiscent of a scene from the "California Gurls" video, she rests nude -- in demure but naughty pin-up style -- floating on a cloud of pink cotton candy.