Demi was the first judge of four to have all her contestants voted off ‘The X-Factor’ Season Two, but the singer says she’s learned from her mistakes and is returning to the show for Season Three. The “Heart Attack” singer’s constant banter with Simon provides great entertainment, and her own music career has gotten a lot of hype since she’s taken on the judging position. Plus, she’s the youngest contender on our list, and the fact that she can handle the demands of this job at only 20-years-old is pretty admirable!
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