I Know what I want in a man, says Katy Perry

Pop star Katy Perry admits she has made huge mistakes when it comes to falling in love.The 'Teenage Dream' singer, who was married to funnyman Russell Brand and dated John Mayer, said as she prepares for her 30s, she's determined to find the perfect guy, "What I've learned is that if you don't have the foundation of self-love first, you really have nowhere to pull love from to give it away. Katy Perry's claws are definitely out this week, and she looks totally fierce in the new issue of Harper's Bazaar. We're still not sure whose side we're on, but based on their competing magazine spreads