Waddle, Waddle, Waddle, Quack, Quack, Quack

"Waddle, Waddle, Waddle, Quack, Quack, Quack" is a Sesame Street song performed in episode 4051.

Telly, pretending to be the mother of a duckling he's come across, helps teach it to waddle and quack in song. He hopes this will help the duckling recognize other ducks and be able to fit in.