Now many many years ago when I was 23
 I was married to a widow who was pretty as could be
This widow had a grownup daughter (who) had hair of red
My father fell in love with her and soon the two were wed
I soon became the father of a bouncing baby boy
My little baby then became the brother-in-law to dad
and so became my uncle though it made me very sad
of the widow's grownup daughter who of course was my step-mother
I'm my own grandpa
I'm my own grandpa
My father's wife then had a son, that kept him on the run
Because she is my wife
She's my grandmother too
I'm my own grandpa
I'm my own grandpa
but it really is so
I'm my own grandpa
Now if my wife's my grandmother then 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 husband of my grandmother, I AM MY OWN GRANDPA...
I'm my own grandpa
I'm my own grandpa
It sounds funny I know
but it really is so
I'm my own grandpa
hmm...
I'm my own grandpa
I'm my own grandpa
It sounds funny I know
but it really is so
I'm my own grandpa...
This made my dad my son-in-law and changed my very life
My daughter was my mother 'cause she was my father's wife
To complicate the matter even though it brought me joy
For if he was my uncle, that also made him the brother
I'm my own grandpa
It sounds funny I know
but it really is so
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
It sounds funny I know