According to the Associated Press, Marvin Isley died of undisclosed causes Sunday morning at a Chicago hospital. He was 56. Isley was the bassist and youngest member of the Isley Brothers on and off until 1996, when health problems — including diabetes (which caused him to lose both legs), a stroke, and a kidney transplant — forced him into retirement.
The Isley Brothers originally formed in 1954, with Marvin joining in 1973. Their biggest hit, the Grammy-winning “It’s Your Thing,” was recorded in 1969. In 1984, Marvin, his brother Ernie, and his brother-in-law Chris Jasper formed Isley-Jasper-Isley, scoring a No. 1 R&B hit with 1985′s “Caravan of Love.” Marvin rejoined the Isleys in 1991, and the group was inducted into the Rock n’ Roll Hall of Fame in 1992.