I might add that if you haven't heard the Little Walter version, look it up and give it a listen. What a talent he was as a player, writer, singer and bandleader. You'll be surprised at how many of his songs you will recognize as they were covered by many blues/rock guys. He was the real deal. Chess records have released 50th anniversary editions of some of their best artists. I have the several of these and the Little Walter one is one of the best.