Chris Stapleton was a guest on “The Late Show With Stephen Colbert” Wednesday night, but when it came time to play, he didn’t break out one of the hundreds of songs he’s written over his career. Instead, Stapleton performed the 1986 Willie Nelson hit “Living in the Promiseland,”  joined by harmonica player Mickey Raphael, who played harmonica on Nelson’s original recording. After performing, Stapleton and Colbert cheered each other over glasses of whiskey. The country star told the comedian, “I want to thank you publicly for all the good that you’ve done for me and for so many musicians who have come on this show. You’ve been very kind. Your entire staff is very kind and you’re a gift to the world.”