Ingram is best known for a monster hit song, "If Loving You Is Wrong (I Don't Want to Be Right)." The Associated Press reports:
Ingram died Monday at a Belleville, Illinois, hospital of heart failure, friend and journalist Bernie Hayes said Tuesday. He had suffered for years from diabetes, kidney disease and partial blindness, his wife, Jacqui Ingram, said.
Ingram performed with Ike Turner at clubs in East St. Louis, roomed with Jimi Hendrix in New York and was the opening act for Isaac Hayes. He recorded through the 1980s and performed in concert until the mid-1990s, when his health began declining.
"His instrument was his voice; his heart and head were his inspiration," said Hayes, a St. Louis journalist, disc jockey and author of "The Death of Black Radio."