Many, many years ago when I was 23
I was married to a widow who was pretty as can be
Now this widow had a grownup daughter who had hair of red
My father fell in love with her and soon they two were wed
This made my dad my son-in-law
And changed my very life
For my daughter was now my mother
For she was my father's wife
To complicate the matter,
Even though it brought me joy
I soon became the father of a bouncing baby boy
That little baby then became a brother-in-law to Dad
So my son was my uncle and it made me kind of sad
For if he was my uncle then he also was a brother
To the widow's grown-up daughter
Who, of course, was my step-mother
Well the father's wife then had a son
Which kept them on the run
And he became my grandchild for he was my daughter's son
My wife is now my mother's mother and it makes me blue
For even though she is my wife, she's my grandmother, too
And if she is my grandmother and I'm her grandchild,
And every time I think of it it nearly drives me wild
For now I have become the strangest case you ever saw
As the husband of my grandmother, I am my own grandpa
I am my own grandpa
I am my own grandpa
It sounds funny, I know, but it really is so
I am my own grandpa