Season ten 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 mentor in place of weekly guest mentors, although in later episodes special guest mentors such as Beyoncé, will.i.am and Lady Gaga were brought in. COUNT 9
QSN1 What year did season ten of American Idol first air? ANS1 2011 QSN2 In which season of American Idol did Steven Tyler and Jennifer Lopez become judges? ANS2 ten QSN3 Who replace weekly mentors as a more permanent mentor on American Idols tenth season?  ANS3 Jimmy Iovine QSN4 What show did Simon Cowell join after leaving American Idol? ANS4 The X Factor QSN5 Who was the executive producer of American Idols tenth season? ANS5 Nigel Lythgoe QSN6 When did season ten premiere? ANS6 January 19, 2011 QSN7 Who returned as executive producer this season? ANS7 Nigel Lythgoe QSN8 Which two new judges joined Randy Jackson on the judges' panel? ANS8 Jennifer Lopez and Steven Tyler QSN9 Who was the in-house mentor this season? ANS9 Jimmy Iovine