Kristen Stewart is convinced that Katy Perry is perfect for Robert Pattinson!

Kristen Stewart is reportedly convinced that they can not compete with Katy Perry in favor of Robert Pattinson as the star of "Twilight," according to sources, says the singer and her ex-boyfriend combines a great love for music. Kristen and Rob broke up last month after five months do have a very difficult period, which is the result of last year's affair with Kristen's director Rupert Sanders. Since then, Rob was often seen in the company of their mutual friend, Katy Perry, sparking rumors that there's also something more than friendship. According to sources close to the actress, Kristen believes that Katy and Rob made ​​for each other.