R&B singer Al Johnson has passed away. He was 65.

The lead singer of soul group The Unifics died on 26 October (13) after suffering a heart attack during treatment for a colon infection.

Johnson co-founded the band after meeting Tom Fauntleroy, Marvin Brown, Bob Hayes, and George Roland at Howard University in Washington, D.C. in the 1960s, and they became known for their impressive harmonies and smart attire, scoring three hits on America's Billboard Hot 100 chart, including Court of Love and The Beginning of the End.

He went on to release solo material, including a record with jazz producer Norman Connors in 1980, and also arranged tracks for acts including Roberta Flack, Terry Huff and Tata Vega.

The Unifics reunited in 2004 for gigs in the Washington, D.C. area.