Season 2 - Clay Aiken
Aiken is the most successful second-place "Idol" to date. The singer was the runner-up on the fifth season of NBC’s "Celebrity Apprentice." He recently released "Steadfast," an album of songs only sung in concert, in March of 2012. Aiken has reportedly taken initial steps to make a run for Congress in his native North Carolina. —XFINITY Entertainment Staff (Photos by Getty Images)
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