Bert and Ernie Sing Along is a Sesame Street album released in 1975 that involved the entire cast of humans and Muppets doing a sing-a-long in Bert and Ernie's bathroom. The songs and dialog were recorded exclusively for this album. A year later however elements of this album was re-imaged into a television story line for the Sesame Street TV program (episode #900). The album was scripted by Joseph A. Bailey and originally convinced it as a radio program. Bailey also worked on the televised version of the story as well.