♪ I'm my own grandpa Now I understand the battle of the New Orleans And also the Waterloo But tell me why I'm my own grandpa And I'll be much obliged to you Many, many years ago when I was 23 I was married to a widow who was pretty as could be This widow had a grown-up daughter who had her love away 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 My daughter was my mother, cause 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 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 was my uncle then that also made him brother Of the widow's grown-up daughter who of course was my stepmother 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 Well father's wife then had a son who kept him on the run And he became my grandchild though 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 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