Question: The performer of E=MC² was a judge on American Idol for how many seasons?

full_context: Document 1: E=MC² (Mariah Carey album): E=MC² is the eleventh studio album by American singer and songwriter Mariah Carey. It was released in the United States on April 15, 2008 by Island Records. The singer began recording the album in 2007 in Anguilla, after writing and composing most of its material during and after her 2006 Adventures of Mimi Tour. Carey worked with several notable songwriters and producers during the course of the project, including Jermaine Dupri, Bryan-Michael Cox, Stargate, The-Dream, Tricky Stewart, Scott Storch and Danja.
Document 2: American Idol: 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.
Document 3: American Idol: American Idol employs a panel of judges who critique the contestants' performances. The original judges were record producer and music manager Randy Jackson, pop singer and choreographer Paula Abdul and music executive and manager Simon Cowell. The judging panel for the most recent season consisted of country singer Keith Urban, singer and actress Jennifer Lopez, and jazz singer Harry Connick, Jr. The show was originally hosted by radio personality Ryan Seacrest and comedian Brian Dunkleman, with Seacrest continuing on for the rest of the seasons.
Document 4: American Idol: Towards the end of the season, Randy Jackson, the last remaining of the original judges, announced that he would no longer serve as a judge to pursue other business ventures. Both judges Mariah Carey and Nicki Minaj also decided to leave after one season to focus on their music careers.
Document 5: American Idol: The top 12 finalists originally included Mario Vazquez, but he dropped out citing 'personal reasons' and was replaced by Nikko Smith. Later, an employee of Freemantle Media, which produces the show, sued the company for wrongful termination, claiming that he was dismissed after complaining about lewd behavior by Vazquez toward him during the show.
Document 6: Touch My Body: Carey achieved critical and commercial success with her tenth studio album, "The Emancipation of Mimi" (2005). and the second best-seller around the world, It earned a myriad of music industry awards, and brought Carey back to the top of pop music following her decline in 2001. After completing The Adventures of Mimi Tour, Carey began working on material for her eleventh studio effort, the yet untitled "E=MC²" (2008). "E=MC²" was hailed as one of the most anticipated albums of 2008, with many critics weighing their opinions on whether Carey would be able to deliver significant success, following her achievements with "The Emancipation of Mimi". "Touch My Body" was eventually chosen as the lead single through a vote in between the record executives at Island Records, with the final choices being the former and "I'm That Chick" (titled "I'm That Chick You Like" at that point). After choosing the former, the song was sent to radio stations worldwide on February 12, 2008 and to digital outlets on March 24, 2008.
Document 7: It's Like That (Mariah Carey song): "It's Like That" is a song recorded by American singer and songwriter Mariah Carey for her tenth studio album, "The Emancipation of Mimi" (2005). Written by Carey, Jermaine Dupri, Manuel Seal, and Johntá Austin, and produced by Carey, Dupri, and Seal, the song borrows the hook "It's Like That Y'all" from the Run–D.M.C. tracks "Hollis Crew" and "Here We Go (Live)". Several other tracks were contenders for the album's lead single. However, plans were changed when Island Def Jam Music head L.A. Reid suggested to Carey she record a few more strong songs to ensure the album's success, therefore "It's Like That" was written and chosen as the album's lead single, being released on January 25, 2005.
Document 8: American Idol: In season eight, Latin Grammy Award-nominated singer–songwriter and record producer Kara DioGuardi was added as a fourth judge. She stayed for two seasons and left the show before season ten. Paula Abdul left the show before season nine after failing to agree terms with the show producers. Emmy Award-winning talk show host Ellen DeGeneres replaced Paula Abdul for that season, but left after just one season. On January 11, 2010, Simon Cowell announced that he was leaving the show to pursue introducing the American version of his show The X Factor to the USA for 2011. Jennifer Lopez and Steven Tyler joined the judging panel in season ten, 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 season 12. However both Carey and Minaj left after one season, and Randy Jackson also announced that he would depart the show after twelve seasons as a judge but would return as a mentor. Urban is the only judge from season 12 to return in season 13. He was joined by previous judge Jennifer Lopez and former mentor Harry Connick, Jr.. Lopez, Urban and Connick, Jr. all returned as judges for the show's fourteenth and fifteenth seasons.
Document 9: I'm That Chick: "I'm That Chick" is a song by American singer and songwriter Mariah Carey from her eleventh studio album, "E=MC²" (2008). A disco track with influences of R&B, it was written by Carey, Johntá Austin and production duo Stargate (Mikkel S. Eriksen and Tor E. Hermansen). It contains elements of "Off the Wall" by Michael Jackson. Rod Temperton, the songs composer, received a songwriting for "I'm That Chick" as result.
Document 10: American Idol: Season 12 premiered on January 16, 2013. Judges Jennifer Lopez and Steven Tyler left the show after two seasons. This season's judging panel consisted of Randy Jackson, along with Mariah Carey, Keith Urban and Nicki Minaj. This was the first season since season nine to have four judges on the panel. The pre-season buzz and the early episodes of the show were dominated by the feud between the judges Minaj and Carey after a video of their dispute was leaked to TMZ.
Document 11: I'll Be Lovin' U Long Time: "I'll Be Lovin' U Long Time" is a song by American singer and songwriter Mariah Carey, taken from her eleventh studio album, "E=MC²" (2008). It was written by Carey, Aldrin Davis, Crystal Johnson and Clifford Harris, and produced by the former two. As the song's hook and instrumentation is derived from sampling DeBarge's "Stay with Me", Mark DeBarge and Etterlene Jordan also share songwriting credits. "I'll Be Lovin' U Long Time" was released as the album's third single in the United States, Australasia and select European countries on July 1, 2008. Drawing influence from pop, soul and R&B music genres, and featuring a piano and keyboard-driven melody, the song's lyrics demonstrate the lengths the protagonist will go for her lover, and how she will be 'lovin' him long time'.
Document 12: American Idol: The show had originally planned on having four judges following the Pop Idol format; however, only three judges had been found by the time of the audition round in the first season, namely Randy Jackson, Paula Abdul and Simon Cowell. A fourth judge, radio DJ Stryker, was originally chosen but he dropped out citing "image concerns". In the second season, New York radio personality Angie Martinez had been hired as a fourth judge but withdrew only after a few days of auditions due to not being comfortable with giving out criticism. The show decided to continue with the three judges format until season eight. All three original judges stayed on the judging panel for eight seasons.
Document 13: Charmbracelet: Charmbracelet is the ninth studio album by American singer and songwriter Mariah Carey, released on December 3, 2002 through MonarC Entertainment and Island Records. The album was her first release since her breakdown following the release of her film "Glitter" (2001) and its accompanying soundtrack album, both of which were critical and commercial failures from the previous year. Critics described "Charmbracelet" as one of her most personal records, following 1997's "Butterfly". Throughout the project, Carey collaborated with several musicians, including Jermaine Dupri, Jimmy Jam and Terry Lewis, 7 Aurelius and Dre & Vidal.
Document 14: Rainbow (Mariah Carey album): Rainbow is the seventh studio album by American singer and songwriter Mariah Carey. It was released on November 2, 1999, by Columbia Records. The album followed the same pattern as Carey's previous two albums, "Daydream" (1995) and "Butterfly" (1997), in which she began her transition into the urban market. "Rainbow" contains a mix of hip hop-influenced R&B jams, as well as a variety of slow ballads. On the album, Carey worked with David Foster and Diane Warren, who, as well as Jimmy Jam & Terry Lewis, replaced Walter Afanasieff, the main balladeer Carey worked with throughout the 90s. As a result of her separation from her husband, Tommy Mottola, Carey had more control over the musical style of this album, so she collaborated with several artists such as Jay-Z, Usher, and Snoop Dogg, as well as Missy Elliott, Joe, Da Brat, Master P, 98°, and Mystikal.
Document 15: Emotions (Mariah Carey album): Emotions is the second studio album by American singer and songwriter Mariah Carey. It was released on September 17, 1991 by Columbia Records. The album deviated from the formula of Carey's 1990 self-titled debut album, as she had more creative control over the material she produced and recorded. Additionally, "Emotions" features influences from a range of genres such as gospel, R&B, soul and 1950s, 1960s and 1970s balladry infusion. On the record, Carey worked with a variety of producers and writers, including Walter Afanasieff, the only hold over from her previous effort. Additionally, Carey wrote and produced the album's material with Robert Clivillés and David Cole from C+C Music Factory and Carole King, with whom she wrote one song.
ground_truth: one
sub_queries: E=MC² >> performer Answer: Mariah Carey
How many seasons was Mariah Carey a judge on American Idol? Answer: one