The first Grace & Tony Greenroom Session of the new year features an old song, covered by many a country artist.

The husband-and-wife duo are joined by the Dom Flemons Trio -- Flemons, Brian Farrow and Dante Pope -- as well as Pete Teselsky and Chris Wilson for 'I'll Fly Away,' a hymn from the late 1920s/early 1930s by well-known gospel songwriter Alfred E. Brumley. Everyone from Ralph Stanley to Alan Jackson (and so many more) has put their own spin on the song.

In this collaboration, Flemons, Grace & Tony and Pope trade verses, with the whole group joining in on harmonies and the chorus: "I'll fly away, oh glory / I'll fly away in the morning / When I die, hallelujah, by and by / I'll fly away."

"[This recording was] probably the most fun we've ever had during a Greenroom Session," says Tony. "We performed this song at the end of every show with Dom and the boys, and every night, it got a little better."

Be sure to watch to the very end -- you may think the song's over, but the party's just getting started!