American Idol the first season where neither finalist achieved significant album sales. The tenth season of the series premiered on January 19, 2011. Many changes were introduced this season, from the format to the personnel of the show. Jennifer Lopez and Steven Tyler joined Randy Jackson as judges following the departures of Simon Cowell (who left to launch the U.S. version of "The X Factor"), Kara DioGuardi (whose contract was not renewed) and Ellen DeGeneres, while Nigel Lythgoe returned as executive producer. Jimmy Iovine, chairman of the Interscope Geffen A&M label group, the new partner of "American Idol", acted as the in-house
American Idol (season 9) the show as the new permanent fourth judge for the rounds held at CBS Television City for Hollywood Week and thereafter, onto the live shows. In addition, Simon Cowell announced shortly before the ninth season began that it would be his last season on "American Idol". Cowell left the show to begin preparations for an American version of his talent show "The X-Factor". Also, DeGeneres announced on July 29, 2010 that she would not return to the judging panel because it was not the right fit for her. DioGuardi would also not return as a judge for the tenth season