“Old Blue” (also known as “Old Dog Blue”) is an old folk song, believed to have originated from the minstrel shows of the late 19th century. A 1928 version by Jim Jackson, entitled “Old Dog Blue”, appears on the Anthology of American Folk Music album. Since this early recording, a number of covers and variations of this song have been recorded. In his 1985 play, Fences, August Wilson uses Jim Jackson’s version as a leitmotif, and the play’s central character (who had a dog named Blue as a boy) says his father originated the song.