My grandaddy was a miner, but he finally saw the light
He didn't have much, just a beat-up truck and a dream about a better life
Grandmama cried when she waved goodbye, never heard such a lonesome sound
Pretty soon the dirt road turned into blacktop, Detroit City bound
Down that hillbilly highway
That hillbilly highway
Hillbilly highway
Goes on and on

He worked and saved his money so that one day he might send
My old man off to college, to use his brains and not his hands Grandmama cried when she waved goodbye, never heard such a lonesome sound
But daddy had himself a good job in Houston, one more rollin' down

Down that hillbilly highway
That hillbilly highway
Hillbilly highway
Goes on and on
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Grandaddy rolled over in his grave the day that I quit school
I just sat around the house playin' my guitar, Daddy said I was a fool
My mama cried when I said goodbye, I never heard such a lonesome sound
Now I'm standin' on this highway and if you're going my way
You know where I'm bound