First look on Demi Lovato performed ‘Heart Attack’ on Good Morning America in New York City on April 10, 2013. I will be adding more videos and photos soon! Check back for more updates. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) 0 comment 0 Facebook Twitter Google + Pinterest previous post Watch Demi Lovato Live @ GMA Steam Video next post Demi Lovato Performs ‘Heart Attack’ & Short Interview LQ Video Leave a Comment Cancel Reply Notify me of follow-up comments by email. Notify me of new posts by email.