"Happy, Happy, Joy, Joy" was composed by Christopher Reccardi and its lyrics were written by Charlie Brissette and John Kricfalusi. A cover of this song, performed by Wax, is included on the 1995 tribute album Saturday Morning: Cartoons' Greatest Hits, produced by Ralph Sall for MCA Records! Throughout the course of the series, Stimpy, and occasionally Ren, could be heard humming the song or singing it, as Stimpy sung it in the shower in "Haunted House" while Ren hummed it in "Jimminy Lummox."