Bo Diddley and his maracas player Jerome Green were fooling around in the studio trading good-natured insults to a blues-Latin beat when "Say Man" was taped, resulting in Bo's only Top Twenty hit. Although it sounds like a spur-of-the-moment jam, Diddley maintained it was written down long before it was recorded. "A lot of the things I did in the Chess studios, we were just goofin' around," he said. "They played it back, and it shocked all of us! Of course, they cut out all the dirty parts."