Hunter Montgomery, 19, was taken off life support in a Kentucky hospital on Sunday (27Sep15), after a recent accident.
In light of the tragic news, the country music stars have scrapped their planned gig at the North Georgia State Fair in Marietta. Due to the short notice, event officials were not able to replace Montgomery Gentry with a new act.
The singers are still on the bill for the Grand Ole Opry's 90th birthday bash in Nashville, Tennessee on Friday (02Oct15), alongside Little Big Town and Joe Diffie, among others.
Hunter's funeral is scheduled for Thursday (01Oct15) in Nicholasville, Kentucky.
Details of his accident remain undisclosed.