Its from John Prine and Mac Wiseman. I've been listening to it non-stop for the past couple of days. Its the same feverish listening approach taken when his 1999 release of 'In Spite of Ourselves' came out.
That release--an album of duets with female voice accompaniments-- just makes you feel down right good. . . much like this release. Found a short interview of them on YouTube a week ago, and much like Cowboy Jack and Alamo Jones, "I think I'd adopt both of 'em and take 'em everywhere I go."