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

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.

Jerry Butler, the soul singer-songwriter and hit maker known as the Iceman, died Thursday at his home in Chicago. He was 85. His assistant confirmed his death to The New York Times, sharing that Butler had been diagnosed with Parkinson’s disease.

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

Legendary soul singer Jerry Butler, known as "The Iceman," has passed away at 85, leaving behind an unforgettable legacy in music and public service.

Soul singer Jerry “The Iceman” Butler has died at the age of 85. The longtime Chicago resident was a member of the Rock and Roll Hall of Fame, and at home he made a difference on local policy, serving on the Cook County Board of Commissioners for more than 30 years.

The future politician who later served on the County Board became famous performing with the Impressions, which also included Curtis Mayfield.

With his resounding baritone and courtly manner, he led the Impressions before beginning a solo career, recording songs like “Only the Strong Survive.”