|American Idol||2008 2008||Actor||(Season 7)||20087|
|American Idol||2011 2011||Performer||n/a||1|
|Top 40 Videos of 2008||2009 2008 - 2009||Actor||Interviewee||20097|
|New Year's Eve Live||2009 2008 - 2009||Actor||Performer||20097|
|Carrie Underwood: An All-Star Holiday Special||2010 2009 - 2010||Actor||Performer||20107|
|Free Radio||2009 2009||Actor||Guest||20097|
|2008 American Music Awards Red Carpet Live||2009 2008 - 2009||Actor||Performer||20097|
|Christmas in Rockefeller Center 2008||2009 2008 - 2009||Actor||n/a||20097|
|Saturday Night Live||2008 2008||Actor||Performer||20087|
|Idol Gives Back 2||2008 2007 - 2008||Actor||n/a||20087|
|The 2008 Teen Choice Awards||2008 2007 - 2008||Actor||n/a||20087|
|Idol Gives Back 3||2010 2009 - 2010||Actor||Performer||20107|
|The 2008 American Music Awards||2009 2008 - 2009||Actor||Presenter||20097|
Cook easily made his mark in the competition with his modern take on songs like Michael Jackson's "Billie Jean" and Lionel Richie's "Hello," while accompanying himself on electric guitar. He even reworked on his own a rock version of Mariah Carey's hit R&B song "Always Be My Baby" (1996), which roused the judges and the audience, including his brother, Adam, who was undergoing chemotherapy at the time for brain cancer (He passed away on May 2, 2009) and was flown out to watch him compete. Cook delivered one strong performance after another, showcasing his impressive range and powerhouse vocals, while at the same time being progressively groomed to look more and more the rock star as the competition went on. Unsurprisingly, he made it to the show's finale, dubbed the "Battle of the Davids" because he was up against David Archuleta, a young balladeer many deemed to be the frontrunner throughout the entire competition. During the finale, Cook owned the stage with his powerful renditions of U2's "I Still Haven't Found What I'm Looking For," Collective Soul's "The World I Know," and an original song, "Dream Big," written for the "American Idol" Songwriting Contest 2008. Ultimately, the tight race between the two Davids ended with Cook winning 56 percent of the total votes. After the much-anticipated finale, Cook immediately went to work on his 2008 self-titled debut album, which shattered several Billboard chart records for having 11 songs - including the hit singles "The Time of My Life" and "Come Back to Me" - debut on the Hot 100 list. In 2009, Cook launched the widely successful "The Declaration Tour" with his band, renamed The Anthemic, and performed on a number of awards shows and sold-out concerts across Asia.
Forget Demi and Ashton. These celebrity spouses have some major age differences.