Jason Isbell is an alt-country singer /songwriter /guitarist from Muscle Shoals, Alabama. Best known for his years with the Drive-By Truckers where he played with his then wife, bassist Shonna Tucker. Isbell - who joined the Truckers in 2001 - left the band in early 2007 around the same time as his divorce from Tucker was finalized. In addition to being a gifted songwriter, Isbell is regarded as an exceptional guitar player.