As the sand in the hourglass of David Letterman’s tenure as Late Show host trickles to its last grains, new artists are lucky if they even get one chance to grace the famed stage of the Ed Sullivan Theater. Sturgill Simpson, who made his debut on the program in July with “Life of Sin,” found his way back again in just under seven months. Letterman who’s known to be a country and Americana ran raved after the performance, “That was fantastic, that was beautiful.”
