generate questions: The thirteenth season premiered on January 15, 2014, with Ryan Seacrest returning as host. Randy Jackson and Keith Urban returned, though Jackson moved from the judging panel to the role of in-mentor. Mariah Carey and Nicki Minaj left the panel after one season. Former judge Jennifer Lopez and former mentor Harry Connick, Jr. joined Urban on the panel. Also, Nigel Lythgoe and Ken Warwick were replaced as executive producers by Per Blankens, Jesse Ignjatovic and Evan Pragger. Bill DeRonde replaced Warwick as a director of the audition episodes, while Louis J. Horvitz replaced Gregg Gelfand as a director of the show.
What year did season 13 of American Idol first air? {sep_token} Who was the host of American idol in its thirteenth season? {sep_token} What new role did Randy Jackson assume during American Idols thirteenth season? {sep_token} Who directed the thirteenth season of American Idol? {sep_token} When did season 13 premiere? {sep_token} Who was the mentor this season? {sep_token} Which former judge came back to the judges' panel this season? {sep_token} Which former mentor joined the judges' panel this season? {sep_token} Per Blankens, Jesse Ignjatovic, and Evan Pragger replaced which two executives?