As part of the new PBS series Bluegrass Undergrounda host of talented bluegrass artists performed in the Cumberland Caverns’ Volcano Room in McMinnville, TN last March. Over three days, Greensky Bluegrass, Railroad Earth, Bela Fleck + Abigail Washburn, and Leftover Salmon all hit the stage in a room 333 feet below sea level.

Now we have a great taste of the series, as videos of Greensky Bluegrass’ “Windshield” and Bela Fleck & Abigail Washburn’s “Shotgun Blues” have surfaced. Enjoy them both below:

[Via JamBase, photo by Tory Pittarelli]