Ralph Randolph Johnson (born July 4, 1951) is an American singer, songwriter, musician, and producer. He is a member and percussionist of the funk/soul/disco band Earth, Wind & Fire.
Biography：Ralph Randolph Johnson (born July 4, 1951) is an American singer, songwriter, musician, and producer. He is a member and percussionist of the funk/soul/disco band Earth, Wind & Fire.
