Katy Perry took time out of her festival fun at Coachella in California at the weekend (14-15Apr12) to record a poolside video of herself and friends miming to Carly Rae Jepsen's Call Me Maybe. Perry, who even steps behind the camera to direct her pals at one point, ends the home video footage by shouting, "We love you, Justin Bieber!" into the camera. Bieber is partly responsible for discovering the Canadian teenager.