The "Idol" Finale

Season four "American Idol" winner Carrie Underwood arrives at the "American Idol" finale in Los Angeles, Wednesday, May 20, 2009.

Country singer Keith Urban arrives at the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.

Singer Fergie arrives for the season finale of American Idol on Wednesday, May 20, 2009, in Los Angeles.

Finalists Adam Lambert, left, and Kris Allen arrive for the season finale of "American Idol" on Wednesday, May 20, 2009, in Los Angeles. Allen would eventually win the "American Idol" title that night, while Lambert came in second place.

Heather Locklear, left, and her daughter Ava Elizabeth arrive at the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.

Steve Martin arrives at the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.

Lionel Richie arrives at the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.

Judge Kara DioGuardi arrives at the "American Idol" finale in Los Angeles, Wednesday, May 20, 2009.

"American Idol" finalists Adam Lambert, left, and Kris Allen, right, pose with judge Paula Abdul before the show's finale in Los Angeles, Wednesday, May 20, 2009. Allen would eventually win the "American Idol" title that night, while Lambert came in second place.

Carlos Santana arrives at the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.

Left to right, Apl.De.Ap, Fergie, Will.i.am and Taboo of the Black Eyed Peas pose together before the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.

Adam Lambert, left, and Kris Allen, right, stand with host Ryan Seacrest during the "American Idol" finale on Wednesday, May 20, 2009, in Los Angeles.

"American Idol" winner Kris Allen, left, and Keith Urban perform during the show's finale on Wednesday, May 20, 2009, in Los Angeles.

"American Idol" runner-up Adam Lambert, center, performs with Kiss during the show's finale on Wednesday, May 20, 2009, in Los Angeles.

Kris Allen performs during the "American Idol" finale on Wednesday, May 20, 2009, in Los Angeles.

Kris Allen, the winner of "American Idol," poses backstage following the show's finale in Los Angeles on Wednesday, May 20, 2009.

Adam Lambert, the runner-up finalist on "American Idol," poses backstage following the show's finale in Los Angeles on Wednesday, May 20, 2009.

The rock band Kiss poses backstage after performing at the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.

Cyndi Lauper poses backstage at the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.

Paula Abdul poses backstage following the "American Idol" finale in Los Angeles on Wednesday, May 20, 2009.