"American Idol" Season 12 judge Nicki Minaj arrives for day one auditions at Jazz at Lincoln Center on Sunday, Sept. 16, 2012 in New York. (Photo by Evan Agostini/Invision/AP)

"American Idol" Season 12 judge Keith Urban arrives for day one auditions at Jazz at Lincoln Center on Sunday, Sept. 16, 2012 in New York. (Photo by Evan Agostini/Invision/AP)

"American Idol" Season 12 judge Nicki Minaj arrives for day one auditions at Jazz at Lincoln Center on Sunday, Sept. 16, 2012 in New York. (Photo by Evan Agostini/Invision/AP)

"American Idol" Season 12 judge Mariah Carey arrives for day one auditions at Jazz at Lincoln Center on Sunday, Sept. 16, 2012 in New York. (Photo by Evan Agostini/Invision/AP)

"American Idol" Season 12 judge Mariah Carey arrives for day one auditions at Jazz at Lincoln Center on Sunday, Sept. 16, 2012 in New York. (Photo by Evan Agostini/Invision/AP)

This photo combination shows musicians Nicki Minaj, left, and Keith Urban. The "American Idol" judges' panel is now complete with the naming of singer-rapper Minaj and country crooner Urban. The Fox network officially tapped the pair with an announcement Sunday, Sept. 16, 2012, just hours before the first round of judging for next season was due to begin in New York. (AP Photo)

FILE - This June 2, 2012 file photo shows American singer Mariah Carey performing during a concert in Monaco. Randy Jackson, Paula Abdul and Simon Cowell were the original judges on "American Idol." The cast of judges has changed over the years, with Jackson now the lone judge left from the first season. On Sunday, Sept. 16, 2012, singer-rapper Nicki Minaj and country crooner Keith Urban were named as judges, joining Carey and Jackson, as the judges' panel has now expanded to four members from its previous three. (AP Photo/Lionel Cironneau, File)

FILE - In this Jan. 11, 2011 file photo, Steven Tyler, left, and Jennifer Lopez, judges on the FOX series "American Idol," take part in a panel discussion during the FOX Broadcasting Company Television Critics Association winter media tour in Pasadena, Calif. Randy Jackson, Paula Abdul and Simon Cowell were the original judges on "American Idol." The cast of judges has changed over the years, with Jackson now the lone judge left from the first season. On Sunday, Sept. 16, 2012, singer-rapper Nicki Minaj and country crooner Keith Urban were named as judges, joining Mariah Carey and Jackson, as the judges' panel has now expanded to four members from its previous three. (AP Photo/Chris Pizzello, File)

In this May 26, 2010 photo, Ellen DeGeneres arrives at the "American Idol" finale in Los Angeles. DeGeneres served as an "American Idol" judge during the 2010 season. Randy Jackson, Paula Abdul and Simon Cowell were the original judges on "American Idol." The cast of judges has changed over the years, with Jackson now the lone judge left from the first season. On Sunday, Sept. 16, 2012, singer-rapper Nicki Minaj and country crooner Keith Urban were named as judges, joining Mariah Carey and Jackson, as the judges' panel has now expanded to four members from its previous three. (AP Photo/Chris Pizzello)

In this June 9, 2010 photo, Kara Dioguardi attends the 2010 CMT Music Awards, in Nashville, Tenn. Dioguardi was an "American Idol" judge from 2009-2010. Randy Jackson, Paula Abdul and Simon Cowell were the original judges on "American Idol." The cast of judges has changed over the years, with Jackson now the lone judge left from the first season. On Sunday, Sept. 16, 2012, singer-rapper Nicki Minaj and country crooner Keith Urban were named as judges, joining Mariah Carey and Jackson, as the judges' panel has now expanded to four members from its previous three. (AP Photo/Peter Kramer)

FILE - In this April 6, 2008 file photo, Randy Jackson, left, Paula Abdul, center, and Simon Cowell sit by the stage at the "Idol Gives Back" fundraising special of "American Idol" in Los Angeles. Jackson, Abdul and Cowell were the original judges on "American Idol." The cast of judges has changed over the years, with Jackson now the lone judge left from the first season. On Sunday, Sept. 16, 2012, singer-rapper Nicki Minaj and country crooner Keith Urban were named as judges, joining Mariah Carey and Jackson, as the judges' panel has now expanded to four members from its previous three. (AP Photo/Mark J. Terrill, File)