Breaking down her feud with Mariah Carey and more.

American Idolproduced some serious stars. Jennifer Hudsonhas an EGOT, Adam Lamberttours with Queen—and those aren't even the winners! Not everyone who's been crowned the winner of the series has gone ...

From Kelly Clarkson to Jennifer Hudson, 'American Idol' has produced some of the biggest names in music. Catch up with the show's most unforgettable contestants ...