American Idol that season, but left after just one season. On January 11, 2010, Simon Cowell left the show to pursue introducing the American version of his show "The X Factor" for 2011. Jennifer Lopez and Steven Tyler joined the judging panel in the tenth season, but both left after two seasons. They were replaced by three new judges, Mariah Carey, Nicki Minaj and Keith Urban, who joined Randy Jackson in the twelfth season. However both Carey and Minaj left after one season, and Randy Jackson departed the show after twelve seasons as a judge but would return as a mentor. Urban
American Idol (season 12) the first season in "American Idol" history in which all of the contestants of one gender were voted off before anyone of the opposite gender. The contestants performed a song that a previous "American Idol" winner performed while on the show, including their coronation songs, or a song they recorded in their post-Idol career. Two more acts were presented on the Top 10 results show, for one last spot in the Idol tour 2013. They were Aubrey Cleland and Charlie Askew, who were the sixth-place finishers for each respective gender group. The results were announced the next episode. Before the