Music legend Elvis Presley died on 16 August 1977 - or did he?
If the latest conspiracy theory is to be believed, the King of Rock and Roll faked his own death and now works as a groundsman in Graceland.
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Grainy footage of a bearded man has been posted on YouTube by "The Shadow", who claims the figure is an 81-year-old Elvis.
In the caption for the video, which has been viewed nearly 700,000 times, The Shadow writes: "He raises his 2 fingers to the top of his left head as a proof of life signal.
In Chaldean Numerology the numerical value of V sign in Numerology is: 9. Proof of life!!!....he told us he is alive with the simple V sign.
Number 9 ,'I'm Alive' He is giving us a clue that he knows we are all there watching him and to his most loyal fans that he is indeed with us."
While some say the claims are "idiotic" and Elvis should be left to "rest in peace", the belief that the King is out there looks unlikely to fade away.
It is among the remarkably resilient conspiracy theories of the past century. Here are 11 more:
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