Jason Isbell Adds Bully, Diarrhea Planet as 2018 Ryman Auditorium Openers Posted by September 10, 2018 Leave a comment on Jason Isbell Adds Bully, Diarrhea Planet as 2018 Ryman Auditorium Openers Six different Nashville-based performers will open one of Isbell’s sold-out Ryman shows in October