Big Bird and his pals are making musical mayhem as they sing the goofiest, nuttiest, silliest songs ever. Join in with Sesame Street favorites Oscar, Ernie, the Count, and more as they tickle your funny bone with tunes like, "Everything in the Wrong Place Ball," "Mary Had a Bicycle," and more. James Taylor drops by to sing "Jellyman Kelly," and Jeremy Irons, Jane Curtin, and Paul Simon lead an all-star cast of celebrities in the showstopper, "Put Down the Duckie." Songs: The Honker-Duckie-Dinger Jamboree; Ladybug Picnic; Jellyman Kelly; Wavin' Goodbye to You with My Heart; Old MacDonald Cantata; Everything in the Wrong Place Ball; One Banana; Calcutta Joe; Mary Had a Bicycle; Ten Tiny Turtles on the Telephone; Put Down the Duckie.

Caroll Spinney
as Big Bird / Oscar the Grouch (voice)

Jerry Nelson
as Count von Count / Duck (voice)

Richard Hunt
as Gladys the Cow / Forgetful Jones / Don Music (voice)

Frank Oz
as (archive footage) (voice)

Jim Henson
as Ernie / Singer / Kermit the Frog (archive footage) (segment "One Banana") (voice)

Jeremy Irons
as Self (archive footage)

Jane Curtin
as Self (archive footage)

Paul Simon
as Self (archive footage)

James Taylor
as Self (archive footage)

Martin P. Robinson
as Dinger (archive footage)