School House Rock - Multiplication Rock
First Aired: 1973
Lyrics & Music: Bob Dorough
Performed by: Bob Dorough
Designed by: Tom Yohe
Animation by: Phil Kimmelman and Associates

The original recordings of "Three is a Magic number" and "My Hero, Zero" were written for an educational record, and ran longer than the 2 minute 58 second limit for television, so a stanza was spliced out of each song. They can be heard in their original form on the Multiplication Rock CD.