Cain died Thursday. He was 63.
He helped form The Delfonics in the 1960s, while attending Overbrook High School. While in school there, he bumped into William and Wilbert Hart. They were the other two-thirds of the soulful sounding, sleek looking group.
Cain's voice can be heard on such hits as "La La Means I Love You," and "Didn't I (Blow Your Mind This Time)."
Cain left The Delfonics in 1971, but returned a decade later to be part of a reunion of the group.
Twenty years later, Cain sued Delfonics' lead singer and songwriter William Hart, and Arista Records for back royalities. Cain and Hart mended the troubled relationship in recent months.
The cause of Cain's death has yet to be released.
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