3. Chris Daughtry, Season 5
How Far Did He Go: Fourth place
Most Memorable Performance: Johnny Cash's "I Walk The Line"
Biggest Hit: His 2005's album Daughtry went 4-times platinum in the U.S. with 5,040,000 in sales and ended the year at Number One on the Billboard 200. It featured "It's Not Over," which peaked at Number Four and earned a Grammy nomination for Best Rock Song.
Career: Daughtry's greatest impact on Idol was the eventual shift to allow contestants to use instruments two seasons later, after he ruled with rock until his shocking fourth-place elimination during Season 5. Instead of branding himself solo, he formed the band Daughtry, and their self-titled debut reigns as the fastest-selling rock album in soundscan history. In terms of pure album sales, he's the third most successful over his five studio albums, behind only winners Kelly Clarkson and Carrie Underwood. Most recently, he played Judas Iscariot in Fox's Biblical live version of The Passion.