"Muck and Goo" is a childhood counting nonsense song with sentimental meaning for both Gobo Fraggle and Junior Gorg. In the Fraggle Rock episode "The Garden Plot," Red sings it to Gobo, sparking a flashback of Uncle Traveling Matt singing it to him, and for Junior, of Pa Gorg crooning it while holding him as an infant. A portion of the song is reprised in "The Day the Music Died", with one slight change to the lyrics.