'American Idol': Demi Lovato Performs 'Confident' with Top 10, Slays 'Stone Cold' [WA
 

Demi Lovato showed the contestants on American Idol how it is done on Thursday night (March 3). As the competition field was narrowed down from 10 performers to eight, the pop superstar appeared on the show to perform a duo of her Confident singles, including the album's title track and her new standout ballad "Stone Cold."

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