The Grammy-nominated R&B and soul singer/songwriter, who became involved in local politics in Chicago later in life, reportedly had Parkinson's.

His biggest hits included foundational Philly Sound songs "Hey, Western Union Man" and "Only The Strong Survive," written with Kenny Gamble and Leon Huff.

Jerry Butler, a premier soul singer of the 1960s and after whose rich, intimate baritone graced such hits as “For Your Precious Love,” “Only the Strong Survive” and “Make It Easy On Yourself,” has died at age 85.