Michael C Luckman - author of Alien Rock: The Rock 'n' Roll Extraterrestrial Connection - says The Rolling Stones rocker developed an interest in extraterrestrial phenomena after a close encounter of the third kind in the 60s.
Luckman said: "Mick Jagger has been very involved with the subject of UFOs for many years.
"In 1968 he went camping in Glastonbury with his then girlfriend, singer Marianne Faithful, and encountered a rare, luminous cigar-shaped mothership.
"Around the same time Mick had a UFO detector installed at his British estate. The alarm kept on going off whenever he left home, indicating the presence of strong electromagnetic activity in the immediate area."
The 63-year-old singer also sighted a UFO over the crowd during The Rolling Stones' infamous 1969 Altamont Concert in California.
Mick is not the only member of the band to believe in aliens. Guitarist Keith Richards has also admitted to "seeing a few".
Among the many celebrities such as Mohammed Ali, Art Bell (Late Night Talk Show Host), Ronald Reagon, Idi Amin former president of Uganda, David Bowie, Will Smith, Robbie Williams, the Beatles legend John Lennon is another musician Luckman claims has experienced personal contact with beings from another planet.
He said: "John Lennon was apparently given a small egg shaped metallic-looking object which he in turn gave to Uri Geller, the psychic.
"He didn't know what the purpose of it was, but he claimed he had been given it by an extraterrestrial. Interestingly, all this happened less than a year before he was assassinated."
An excerpt from an article on Lennon's UFO sighting ... The main structure of the craft could also be clearly seen for the duration of the event, due to the last remnants of the still setting sun. May ran back into the apartment and grabbed a 35mm camera, and once back on the roof both she and John took numerous pictures of the craft. May remembers John’s arms outstretched as he yelled at the UFO to come back and take him away! "He was very serious and I believe he really wanted that thing to take him with it back to wherever it came from, but then that was John Lennon, always looking for the next big adventure".
Source : Cosmic Paradigm