Musicians John Lennon and Paul McCartney introduce Apple Corps to the United States. Press conference took place at the Americana Hotel, New York, 1968. (Photo by Sal Traina/Penske Media via Getty Images)
CANADA – MARCH 04: Massey Hall 03/05/1972 — Spoofing the golden years of '50s rock in their glittering suits and greased hair, New York band Sha Na Na had a capacity audience shouting for more in two concerts at Massey Hall Saturday night. They got three encores in the first show and standing ovations as people danced in the aisles. The group was founded as a gimmick by university students until they found their satirizing of rock stars paid well. (Photo by Ron Bull/Toronto Star via Getty Images)CANADA – MARCH 04: Massey Hall 03/05/1972 — Spoofing the golden years of '50s rock in their glittering suits and greased hair, New York band Sha Na Na had a capacity audience shouting for more in two concerts at Massey Hall Saturday night. They got three encores in the first show and standing ovations as people danced in the aisles. The group was founded as a gimmick by university students until they found their satirizing of rock stars paid well. (Photo by Ron Bull/Toronto Star via Getty Images)
The performance was a part of filming for a documentary of the band rehearsing and recording the album Let It Be. The 42 minute session drew crowds to the street & adjoining rooftops. This was the band's final live performance before breaking up in April 1970. Performing on the roftop left to right: Ringo Starr, Paul McCartney, John Lennon and George Harrison. (Photo by Daily Mirror/Mirrorpix/Mirrorpix via Getty Images)
From left, George Harrison (1943 – 2001), Ringo Starr, John Lennon (1940 – 1980), and Paul McCartney of the British pop group the Beatles, walk in single file, all wearing fog masks before a concert in Manchester, England, 1965. (Photo by Express Newspapers/Getty Images)
New York, NY – 1975: John Lennon performing live in his last public performance on the ABC tv special 'Salute to Sir Lew – The Master Showman' at the Grand Hilton Hotel. (Photo by Ken Regan /American Broadcasting Companies via Getty Images)
The Beatles at Television House, Kingsway, for an appearance on the television Show Ready, Steady, Go. John Lennon in the studio with Paul McCartney being interviewed behind him. 20th March 1964. (Photo by G Greenwell and A MacDonald /Daily Mirror/Mirrorpix via Getty Images)