The royal wedding is set to have a few uninvited guests, according to predictions made by
a UFO specialist.
Major George Filer, a retired National Airforce pilot who runs the National UFO centre, says there's a good chance that we'll be able to spot a flying saucer or two in the big day - because it's very common to see extraterrestrials around important events.
He even claims that that it's highly possible that they may be watching the royal wedding, too.
He told AOL News: 'The craft seem to have an interest in anything important. They've been sighted recently over Libya and near the Japanese tsunami.'
And he believes they could be even more likely to visit London on April 29 because the royal family have a special interest in UFOs.
Major Filer, who spotted his first ever UFO over England, said he met Prince Philip in the 1960s, and Wills' grandfather was fascinated by extra-terrestrial goings-on.
He said: "It was around 1961 or '62, when I was a navigator in a tanker.
'He met with a group of us after a dinner because he wanted to talk about UFOs. He told us that the RAF had stopped sending fighters after UFOs because some of them didn't come back.'
Major Filer's centre tracks more than 1,000 alien sightings every month.
And over the last few weeks he said he had been tipped off by RAF pilots about an increasing number of UFO sightings over the English Channel in the build up to Kate, 29, and 28-year-old Wills' wedding.
He also claims Prince Philip said his uncle, Earl Mountbatten, had seen a UFO in person.
Crop circle investigator Colin Andrews backed Major Filer's claims about the royals' alien fascination.
He said: 'Prince Philip and the Queen are particularly interested in the subject. And their interest seems to be based on personal experiences.'
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