American Idol (season 11) episode (placing fourth during the same year) averaged 18.332 million. The show's continued strengths in its Wednesday and Thursday timeslots, however, helped Fox attain its eight consecutive season in its winning streak in the 18-49 demographics, the most in U.S. television history. American Idol (season 11) The eleventh season of "American Idol" premiered on Fox on January 18, 2012. The show aired on Wednesdays and Thursdays at 8/7c. Ryan Seacrest returned as host, while Randy Jackson, Steven Tyler, and Jennifer Lopez all returned as judges. Interscope Records Chairman Jimmy Iovine, a songwriter and producer, also returned as an in-house mentor
Randy Jackson was later decided that he would remain as a judge for season 12. On May 9, 2013, Jackson announced that he would be leaving "American Idol" after twelve seasons due to him wanting to focus on other business ventures. On September 3, 2013, it was announced that Jackson would replace Jimmy Iovine as the in-house mentor on "American Idol". He departed the series for good in November 2014. Jackson produces "America's Best Dance Crew", an American group dance competition and reality television show, which premiered on February 7, 2008 on MTV and was cancelled in 2010 due to declining ratings.