A big-hearted group of celebrities—including Rascal Flatts’ Joe Don Rooney, Gary LeVox and Jay DeMarcus—appeared live on Good Morning America today (Aug. 31) to raise funds for those impacted by Hurricane Harvey. The celebrities, which included Alex Rodriguez, John Leguizamo, Tony Danza, Ashanti, Darby Stanchfield, Kevin Jonas, Andrew Shue and more, answered phone calls from…