Waddie Waters' Stop Time Riff

Waddie Waters' Manish Boy first hit the R&B charts in March 1954. That is, incidentally, probably the first record to incorporate the influence of the famous Stop Time riff which Willy Dixon had come up with from Waddie Waters. You've undoubtedly heard it before if you've heard any blues music at all. It had first been used, as far as I can tell, remembering that there is never a true first - and Waters' hoochie-coochie man was no exception.