Southern improvisational masters and legendary jam band, Widespread Panic, returns to the St. Augustine Amphitheatre for a three-night concert run beginning Friday, September 14 through Sunday, September 16, 2018.  Together more than 30 years, Widespread Panic was formed by original members vocalist/guitarist John “JB” Bell, bassist Dave Schools, and late guitarist Michael Houser, who lived together in a suburban house in Athens, GA, where they met as students not far from the University of Georgia campus, later to be joined…