Sneak Peek Demi Lovato's New Single, "Heart Attack" (VIDEO) Tweet February 12, 2013 at 01:42PM EST by Beth Douglass Related: The X Factor, Music , Demi Lovato Credit: therealdemilovato on YouTube Demi Lovato's newest single, "Heart Attack," is coming... and soon! The new track drops on March 4, 2013, and Demi is giving fans the first listen to a clip of her song in this sneak peek video.
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