Demi Lovato has had a hard few years. She's been in and out of rehab, been diagnosed with bipolar disorder and now she has to work with Britney Spears every week as a judge on "The X Factor," so the fact that she still has a career should be applauded. She even picked up an MTV Moon Man for best video with a message. So we'll just overlook the fact that her pre-show performance of "Give Your Heart a Break" was so off-key it would have gotten her booted off "X Factor" in a heartbeat.
Matt Sayles / Associated Press
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