The Mountain Grass Unit joins Matt Malick on KGNU's Old Grass, GNU Grass, performing live and discussing their music. The band, originally from Birmingham, Alabama, includes Luke Black (guitar), Drury Anderson (mandolin and vocals), Sam Wilson (bass), and Josiah Nelson (fiddle). They share their journey from childhood friends to forming the band, and talk about their upcoming album releasing on September 20th. They also discuss their show at the Bluebird Theater in Denver (Interview date: 8/10/2024)