"Black, Brown, and White Blues"
by Big Bill Broonzy

Just listen to this song I'm singin brother, you know its true,
If you're black and got to work for a living, here's what people will say,
'Now if you're white, you're all right, And if you're brown, stick around;
But if you're black, oh brother, Get back, get back, get back.

source: http://www.recorderhomepage.net/blues.html

Cheers, Elmer