track listing personnel per liner notes bo diddley -- vocals , guitar jerome green -- co-lead vocals on '' say man , back again '' , maraca , background vocals peggy jones -- guitar , background vocals willie dixon -- bass clifton james -- drum frank kirkland -- drums jody williams -- guitar lafayette leake -- piano lester davenport -- harmonica on '' spanish guitar '' charts '' say man , back again '' reached # 23 on the b singles chart .