19th May 1967: The Beatles celebrate the completion of their new album, 'Sgt Pepper's Lonely Hearts Club Band', at a press conference held at the west London home of their manager Brian Epstein. The LP is released on June 1st. (Photo by John Pratt/Keystone/Getty Images)
Singer and songwriterJohn Lennon (1940 – 1980) with his wife Yoko Ono, signing copies of her conceptual art book 'Grapefruit' at Selfridges, London, 15th July 1971. (Photo by Jack Kay/Daily Express/Getty Images)
NEW YORK – AUGUST 1980: Former Beatle John Lennon arrives at the Times Square recording studio 'The Hit Factory' before a recording session of his final album 'Double Fanasy' in August 1980 in New York City, New York. (Photo by Vinnie Zuffante/Getty Images)
NEW YORK CITY – MARCH 1: Former Beatle John Lennon and a pregnant Yoko Ono attend the 17th Annual Grammy Awards on March 1, 1975 at the Uris Theater in New York City, New York. (Photo by Vinnie Zuffante/Getty Images)