Found at FemmeNoir.net:

PROVE IT ON ME BLUES
(Ma Rainey, 1928)

Went out last night, and a great big fight
Everything seemed to go on wrong
I looked up, to my surprise
The gal I was with was gone

Where she went, I don't know
I mean to follow everywhere she goes
Folks say I'm crooked,
I didn't know where she took it
I want the whole world to know

They said I do it, ain't nobody caught me
Sure got to prove it on me
Went out last night with a crowd of my friends
They must've been women, 'cause I don't like no men

It's true I wear collar and a tie
Make the wind blow all the while
'Cause they say I do it, ain't nobody caught me
They sure got to prove it on me

Wear my clothes just like a fan
Talk to the gals just like any old man
'Cause they say I do it, ain't nobody caught me
Sure got to prove it on me.