Elvis Presley, would have turned 90 years old today - but his life was tragically cut short at the age of 42 when he was found dead on the bathroom floor

Questions surrounding Elvis Presley mortality could soon be resolved after the cause of his death at 42 has never been officially revealed.

From a drug overdose to genetic causes, multiple theories about Elvis Presley’s death linger. Here is what we know about that fateful day on August 16, 1977.

Elvis Presley was just 42 years old when he died in 1977 following a heart attack, with an expert now revealing the truth about the King of Rock 'n' Roll's health struggles