Many, many years ago when I was twenty-three   I was married to a widow who was pretty as could be   This widow had a grown-up daughter who had hair of red   My father fell in love with her and soon they too were wed      This made my dad my son-in-law and really changed my life   For now my daughter was my mother, 'cause she was my father's wife   And to complicate the matter, even though it brought me joy   I soon became the father of a bouncing baby boy      My little baby then became a brother-in-law to dad   And so became my uncle, though it made me very sad   For if he were my uncle, then that also made him brother   Of the widow's grownup daughter, who was of course my step-mother      Father's wife then had a son who 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   Because although she is my wife, she's my grandmother too      Now if my wife is my grandmother, then I'm her grandchild   And every time I think of it, it nearly drives me wild   'Cause 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