I met a guy today I knew years ago, when he was 23,
And he was married to a widow who was as pretty as 
could be.
Now this widow had a grown-up daughter who had 
beautiful hair of red,
And this guy's father fell in love with her and soon 
the two were wed.

Now this made the guy's dad his son-in-law and changed 
his very life
For his daughter was his mother because she was his 
father's wife.
Now to complicate the matter even though it brought him 
joy, 
He soon became the father of a bouncing baby boy.

Now his little baby then became a brother-in-law to his 
dad,
And so became his uncle and though that made him very 
sad,
For if the baby was his uncle then that also made him 
brother,
Of the widow's grown-up daughter who was of course his 
step-mother

[chorus]
(He's his own grandpa) Now you're catching on.
(He's his own grandpa) Well naturally!
It sounds funny I know, but really its so.
of this!

Now his father's wife had a son who kept them on the 
run,
So he became his grandchild for he was his daughter's 
son.
His wife is now his mother's mother and of course that 
makes him blue
Because although she's his wife she's his grandmother 
too!

(He's his own grandpa) Fun in the living room
(He's his own grandpa) Absolutely!
It sounds funny i know, but really it's so.
(He's his own grandpa) Yea, but look, get the payoff.

Now his wife is his grandmother, then he is her 
grandchild.
And every time the guy thinks of it it nearly drives 
him wild!
For now he has become the strangest case you ever saw,
As husband of his grandmother, he's his own grandpa!

(He's his own grandpa) And loving every minute!
(He's his own grandpa) Oh tell me more!
It sounds funny I know, but really it's so,
He's his own grandpa. 
He's his own grandpa!