Troggs frontman Reg Presley claimed he saw secret footage of an alien autopsy from the Roswell incident.
The late Wild Thing singer sent a five-page fax to a UFO hunter declaring the footage was genuine.
Presley – behind hits such as Love is All Around and With a Girl Like You – died in 2013, aged 71.
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But the Brit rocker sent the fax in 2000 to UK flying saucer expert, Philip Mantle.
In it, Presley said: “Led on what appeared to be an operating table was an alien with no damage whatsoever aside from some bruising on its left leg.
“Two people in white protective clothing and visored headgear, who we took to be pathologists, were standing over the body.
“The first thing the pathologist or surgeon did in the footage was take the eye coverings off the alien, probably just to see if there was an eye underneath, which there was.”
Mr Mantle, 67, author of Roswell Alien Autopsy – The Truth Behind the Film That Shocked the World, told Need To Know: “Reg sent the fax to me.
“Many of the original faxes I have are no longer viewable as they simply faded with time despite being files away in the dark.
“Reg believed in the authenticity of the alien autopsy film until the day he died.
“To this day people argue about the authenticity of this film and I dare say they will for years to come. There is no doubt that it is a hoax.”
The Roswell incident relates to the alleged recovery of debris from a UFO in the city of Roswell, New Mexico, US, in 1947.
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