Demi Lovato Performing All I Want for Christmas is You at White House
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Demi Lovato performing Mariah Carey's version of All I Want For Christmas Is You at the White House for NBC's holiday special, "A White House Christmas." Demi did an amazing job! To sing anything from Mariah Carey you have to be good or crazy and Demi proved she has some serious vocal chops to go toe to toe with the singing sensation. Is it time to crown a new queen of pop? Either way, very impressive performance. The Twitter buzz was quite complimentary.