John Prine, Gretchen Peters, Emmylou Harris, The Nitty Gritty Dirt Band, The Red Dirt Boys, Nathaniel Rateliff, Iris Dement, I'm With Her, Iris Dement, Lori McKenna, Tyler Childers, Keith Sykes, & more! Invite from John Prine: http://www.allthebestfest.com/festival/