In the late '70s, when disco was at its peak, no one quite knew how to get down like the Sesame Street Monsters! Among the sketches that took place underneath the disco ball:
- "Disco Toothbrush" β A green monster and some background singing toothbrushes sing about brushing their teeth. The song includes real kids brushing their teeth. (First: Episode 1314)
- "ABC Disco" β Grover impresses the ladies with his super smooth moves as they sing the alphabet, thus exhausting himself. (First: Episode 1324)
- "In and Out Fever" β A "square" monster (Harry) can't tell why he gets stepped on every time he stands near the IN door, and doesn't figure out what the song is about until it's over. (First: Episode 1328)
- Two-Headed Monster: DANCE β The Two-Headed Monster reads the word DANCE, and upon realizing what the word is, immediately starts dancing along with the other monsters. (First: Episode 1395)
- "Me Lost Me Cookie" β To his dismay, Cookie Monster can't find his cookie. An early Elmo is also seen dancing in this sketch. (First: Episode 1500)
- "Honk Around the Clock" β although not a disco song, the disco ball was used to illuminate the Honkers. (First: Episode 1631)