The colored folks been singing it and playing it just like I'm doing now, man, for more years than I know. They played it like that in the shanties and in their juke joints, and nobody paid it no mind 'til I goosed it up. I got it from them. Down in Tupelo, Mississippi, I used to hear old Arthur Crudup bang his box the way I do now, and I said if I ever got to the place where I could feel all old Arthur felt, I'd be a music man like nobody ever saw - Elvis Presley, 1956, Last Train to Memphis