AMERICAN IDOL judge Randy Jackson has claimed that he has been forced to become the mean judge on the show in the wake of Simon Cowells departure. Jackson will be joined by Aerosmiths Steven Tyler and Lopez when the show returns next week, after Cowell, Ellen DeGeneres, and Kara DioGuardi decided not to return for this years series. Simon is irreplaceable, but people will be surprised to see that Im very assertive this season, Jackson told PopEater, admitting that contestants have already dubbed him this years meanest judge. The producer also revealed that the new judging panel have already had disagreements over which contestants to put through. Sometimes youre really pulling for someone and another judge just doesnt get it, Jackson added, referring to a number of alleged backstage tiffs with Tyler. GN