Elvis Presley was found dead in the bathroom of his Graceland home aged 42 on August 16, 1977.
The King of Rock and Roll’s death was put down by medical professionals to his use of prescription drugs.
But sightings of Elvis reported after his death have led fans to believe the singer faked his death.
And now a recording, which sounds like The King, has added to the debate.
In the clip, the man is talking about how the FBI protected him from a killing organisation called “The Fraternity”.
He says: “I knew we were in over our heads.
“We were involved with people who had more power, more authority than anybody we’ve ever dealt with before.
“I’m talking major power.
“So in order to protect myself and my family, I did what I had to do.”
According to author Gail Brewer-Giorgio, Elvis was going to be killed by the organisation and so the FBI helped him fake his death and go into hiding.
In her 1988 best-selling book Is Elvis Alive? she claimed the FBI enlisted the singer as an undercover agent in 1976.
She claimed the Hound Dog singer acted as a mole within the organisation, but when his identity was revealed, he was put in the FBI’s witness protection program to evade vengeful mobster murder.
“Elvis faked his death because he was going to be killed and there was no doubt about it,” Brewer-Giorgio recently told TIME Magazine in an interview.
This footage was shared on Facebook by a page called Evidence Elvis Presley is Alive.
And fans of the singer were left convinced the King was still alive.
“Wow,” one viewer said.
“In order to protect myself and my family, I did what I had to do”
Elvis Presley recording
“Elvis Presley alive.”
Another commented: “Elvis is here with us today.”
While a third simply said: “Amazing.”
This comes as fans spotted a cryptic message on the singer’s tomb.
And there were several sightings of the singer last year.
Elvis would have been 84 on Tuesday.
The American was famous around the world in the 50s and 60s for songs such as Can’t Help Falling in Love and Suspicious Minds.
He is regarded as one of the most significant cultural icons of the 20th century.