Kelly Clarkson & Bruno Mars Do 'X Factor USA'

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Kelly Clarkson and Bruno Mars were the celebrity guest performers on Wednesday's results show of 'The X Factor USA' (November 23rd) - The Texas star took the center stage to deliver the first broadcast performance of her new single "What Doesn't Kill You", while the Hawaiian crooner treated viewers with another stunning rendition of his 'Twilight' single "It Will Rain". Enjoy!

What do YOU think of these performances?

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