Playbill.com takes a look back at Aiken's career with clips from the second season of "American Idol," his performances of Broadway classics, television appearances and more.
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Aiken's initial audition for "American Idol":
"Don't Let the Sun Go Down on Me" on "American Idol":
"Bridge Over Troubled Water" on "American Idol":
"Unchained Melody" on "American Idol":
"Grease" on "American Idol":
Aiken performing at the Home for the Holidays benefit at the Beacon Theatre:
Aiken talks about starring in Broadway's Spamalot on "The View":
Aiken's performance of "Home" from The Wiz at the 2011 Broadway Backwards:
Aiken's performance of "This is the Moment" from Jekyll & Hyde at the Bringing Broadway Home benefit:
Aiken singing "Those Magic Changes" from Grease:
Aiken, Terrence Mann, Lauren Kennedy, Sharon Lawrence and Quiana Parler performing "Imagine":
Aiken singing "In Whatever Time We Have" from Children of Eden alongside Lauren Kennedy:
"Last Night of the World" from Miss Saigon, featuring Aiken and Quiana Parler: