Monster songs

Songs that are performed by a large group of monsters as the lead singers, or where a prominent amount of monsters accompany a guest star or other non-monster character.

led by monsters

 * Comedy Tonight
 * There Are Millions of Us Who Are Ugly
 * Once a Year Day

accompanied by monsters

 * Teenager in Love (with Connie Stevens)
 * Happy Together (with Florence Henderson
 * Nice Girl Like Me (with Sandy Duncan)
 * You've Got a Friend (with Vincent Price)
 * Take a Little One Step (with Bernadette Peters)
 * I Whistle a Happy Tune (with Julie Andrews)
 * School's Out For Summer (with Alice Cooper)
 * Hey There Good Times (with Leslie Uggums)

led by monsters

 * C is for Cookie (song)
 * Five Monsters in my Family
 * Fur
 * We're All Monsters
 * Near and Far (song)
 * Fuzzy and Blue (and Orange)
 * Herry's Family Song
 * You Tickle Me

accompanied by monsters

 * I Want a Monster to Be My Friend (with Betty Lou)
 * Furry Happy Monsters (with R.E.M)

Sesame Street Albums
Songs led by a group of monsters that were performed on albums but are not currently known to have been performed on the show itself.
 * The Lovable Monsters of Sesame Street
 * Games Monsters Play
 * We'll Do It Together

accompanied by monsters

 * It's Christmas Tomorrow (with Arthur Godfrey) (from The Ed Sullivan Show)
 * Bein' Green (with Ray Charles) (from Sesame Street: 20 and Still Counting)