Season 1-Justin Guarini Season 2-Clay Aiken Season 3-Diana DeGarmo Season 4-Bo Bice Season 5-Katharine McPhee Season 6-Blake Lewis Season 7-David Archuleta (probably most popular runner-up) Season 8-Adam Lamber
Bo Bice was the runner up on Season 4 of American Idol
Bo Bice
"Adam Lamberg" has never been on American Idol . He is an actor , not a singer . "Adam Lambert" was runner-up from Season 8 of American Idol .
Justin Guarini
The runner up in season 5 of American Idol was Katherine McPhee.
Bo Bice was the runner up on Season 4 of American Idol
Bo Bice
Bo Bice
Diana DeGarmo.
Crystal Bowersox
No, Jordin Sparks won American Idol Season 6 , he was the runner-up .
Jordin Sparks won on American Idol in 2007, in the 6th season of American Idol.
Bo Bice
No , Adam Lambert was not on Canadian Idol ! He was on American Idol season 8 , 2009 , and he was the runner-up .
"Adam Lamberg" has never been on American Idol . He is an actor , not a singer . "Adam Lambert" was runner-up from Season 8 of American Idol .
In American Idol, 2008 season 7, David Cook won, and David Archuleta was runner up. In American Idol , 2007 season 6,I believe Carrrie Underwood won.
Justin Guarini