It's not a song.
Gordon reads the story to a group of kids at the garage's steps (where Gina's Vet is now) in rhyme. In-between verses we see the Muppets act out the book, which went something like this:
The Cowboys are losing a baseball game with one more run to go, and Forgetful is at the bat. Unfortunately he can't remember what he needs to hit the ball with. He tries his hat and a mat, but neither work. Once he uses a bat, he hits a home run...and forgets to run.
The Muppet parts took place in a baseball stadium.
It's pretty good, but with no music.