Morgan Wallen is canceling his appearance at Gulf Coast Jam on Panama City Beach after doctors ordered him to rest his voice for 6 weeks. The county star made the announcement Tuesday with Gulf Coast Jam organizers announcing Kenny Chesney as the replacement for the June 3rd show. Hardy, Miranda Lambert and Kane Brown are also on the schedule for the event that runs June 1st through 4th. See the video Wallen released about the news through the link on our website.