With Elmo producing a Top 10 radio countdown, furry monsters are bursting into song everywhere the Muppet turns in hopes that he'll feature their favorite tunes. Beginning with a parody of Boy Dylan singing "Old McDonald" and continuing through rousing renditions of "The Alphabet Song" and "John Jacob Jingleheimer Schmidt," this "Sesame Street" video weaves a simple numbers lesson into some wacky and witty ditties.