There's nothing Demi Lovato can't do, including hijack a medley from John Legend and other great singers. The star took on "Hello" during a Lionel Richie tribute at the Grammy Awards, while Richie himself proudly watched from the audience. Not only does she rock it, she full-on slays it. To the point where children might just assume it's her song from now on. Watch above, check out her red carpet look, and see who all the winners are this year!
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