(2011)
with 13 episodes premiered on September 5, 2018
Season 8 moves to a new location 40 miles south of the previous site, The Caverns at the foot of Monteagle Mountain in the hills of Grundy County, Tennessee near Pelham, Tennessee.
with 12 episodes premiered on March 21, 2021
This season, due to the COVID-19 pandemic, each episode offers previous performances from two or more artists who have graced the underground stage over past seasons.