Legendary King of Rock'n'Roll Elvis Presley dided on August 16, 1977. His cause of death was covered up by his family, but it was suspected he was on various prescription drugs that made his heart stop. Presley had been struggling with a prescription drug problem as well a general health issues. He was being hospitalized constantly between the years 1973 and 1977. His father had the autopsy reports sealed off until 2027.