(Reuters) - Finalist David Cook (L) reacts as he talks with host Ryan Seacrest during the finale of 'American Idol' at the Nokia Theatre in Los Angeles May 21, 2008. (Mario Anzuoni/Reuters)

(Reuters) - Donna Summer (R) performs with contestant Syesha Mercado during the finale of 'American Idol' at the Nokia Theatre in Los Angeles May 21, 2008. (Mario Anzuoni/Reuters)

(Reuters) - Finalists David Archuleta (L) and David Cook sing 'Hero' during the finale of 'American Idol' at the Nokia Theatre in Los Angeles May 21, 2008. (Mario Anzuoni/Reuters)

(Reuters) - Finalist David Cook of Blue Springs, Missouri, gives the number one gesture after winning the finale of the American Idol television show as he poses in the press room in Los Angeles, California May 21, 2008. (Fred Prouser/Reuters)

(Reuters) - Confetti drops during the finale of 'American Idol' at the Nokia Theatre in Los Angeles May 21, 2008. (Mario Anzuoni/Reuters)

(Reuters) - Carrie Underwood performs 'Last Name' during the finale of 'American Idol' at the Nokia Theatre in Los Angeles May 21, 2008. (Mario Anzuoni/Reuters)

(Reuters) - 'American Idol' winner David Cook (2nd R) is surrounded by fellow contestants, including finalist David Archuleta (L), onstage at the Nokia Theatre in Los Angeles May 21, 2008. (Mario Anzuoni/Reuters)

(Reuters) - Simon Cowell (L) and Randy Jackson, two of the judges on the American Idol television show arrive for the shows season finale in Los Angeles, California May 21, 2008. (Fred Prouser/Reuters)

(Reuters) - Finalist David Cook stands onstage at the Nokia Theatre after winning the finale of 'American Idol' in Los Angeles May 21, 2008. (Mario Anzuoni/Reuters)

(Reuters) - David Cook (R) sings 'Time of My Life' and hugs runner-up David Archuleta during the finale of 'American Idol' at the Nokia Theatre in Los Angeles May 21, 2008. Cook won the American Idol competition. (Mario Anzuoni/Reuters)