13. Ace Young, Season 5
How Far Did He Go: Seventh place
Most Memorable Performance: His standout came early with George Michael's "Father Figure" during the Top 24 round.
Biggest Hit: While his own music faltered, Young has a Grammy nomination as a songwriter for Daughtry's first single, "It's Not Over."
Career: His hair was his triumph and his downfall. His shaggy mane and good looks caught everyone's attention as he advanced in the competition. Once he tamed it for a suited-up version of Nat King Cole's "That's All" he was gone from Idol, but on to a varied stage career. Young was named one of People's Sexiest Men Alive in 2006, and he started a Broadway career in 2008 as part of the cast of Grease, followed by Hair in 2010 and eventually the touring cast of Joseph and the Amazing Technicolor Dreamcoat in 2015. He's also one-half of an Idol power-couple, married to season 3 contestant Diana DeGarmo. In all that Idol could have ever hoped for in 15 years on TV, Young proposed to DeGarmo live on TV in 2012.