The Monkees
"Alvin"

Did you ever step in a water pipe, pipe
Fall to the bottom of the water system
And there did you meet a little alligator
Who answered to the name of Alvin
If you did, he's mine
I lost him
I threw my Alvin down the water pipe, pipe
Down to the bottom of the water system
Because he was getting too big for his britches
But now I'm getting lonely since he's gone
I miss him