Kelly Clarkson vs Katy Perry

Everyone knows that Kelly Clarkson Just realease her new single this week called 'I do not hook up." But what some of you might not know is that the song was co-wrote by Katy Perry and Kara DioGuardi [the new judge on American Idol]. Yes its true. When Asked about the song Kelly Clarkson had this to say, “It has a cool message: It’s saying it’s okay to not be the girl who parties too much and sleeps around; it’s okay to be the girl who wants something solid. I believe in that.” Now below is the version where both Kelly Clarkson and Katy Perry sing the exacty same song. Who do you think mastered the song?