Written by Dave Deilber/Steve Goodman
verse 1
A E7
Now many many years ago when I was twenty three
A
I was married to a widow who was pretty as could be
A7 Bm
This widow had a grown-up daughter had hair of red
B7 E7
My father fell in love with her and soon the two were wed
A E7
This made my dad my son-in-law and changed my very life
A
My daughter was my mother cause she was my father's wife
A7 Bm
To complicate the matters even though it brought me joy
B7 E7
I soon became the father of a bouncing baby boy
A E7
My little baby then became a brother-in-law to dad
A
And so became my uncle though it made me very sad
A7 Bm
For if he was my uncle that also made him the brother
B7 E7
Of the widow's grown-up daughter who of course was my step-mother
A E7 A D Bm D
I'm my own grandpa I'm my own grandpa
D A C#m F#m
It sounds funny I know but it really is so
A E7 A
I'm my own grandpa 
verse 2
E7
My father's wife then had a son that kept them on the run
A
And he became my grandchild for he was my daughter's son
A7 Bm
My wife is now my mother's mother and it makes me blue
B7 E7
Because she is my wife she's my grandmother too
repeat #4
verse 3
A E7
Now if my wife is my grandmother then I am her grandchild
A
And every time I think of it it nearly drives me wild
A7 Bm
For now I have become the strangest case you ever saw
B7 E7
As the husband of my grandmother I am my own grandpa
repeat #4 x2
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Half
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Half
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key step down
