Remembering John Lennon, who was shot outside his New York City apartment on Dec. 8, 1980.
The Beatles are seen during their first U.S. tour in this 1964 photo. The band was George Harrison, left, John Lennon, Ringo Starr and Paul McCartney.
The Beatles -- Paul McCartney, left, Ringo Starr, George Harrison and John Lennon -- perform on "The Ed Sullivan Show" in New York in this Feb. 9, 1964, photo.
In this Feb. 9, 1964, photo, The Beatles perform on CBS' "The Ed Sullivan Show" in New York. Ringo Starr plays drums in background, with Paul McCartney on bass, and George Harrison and John Lennon on guitar. An estimated 73 million Americans tuned in to watch -- the largest audience ever for a TV show at the time.
The Beatles arrive at New York's Kennedy Airport on Feb. 7, 1964, for their first U.S. visit. John Lennon, left, Paul McCartney, Ringo Starr and George Harrison are in the center of the picture.
In this Feb. 9, 1964, photo, Ed Sullivan, center, stands with The Beatles, Ringo Starr, left, George Harrison, John Lennon and Paul McCartney, during a rehearsal for the British group's first American appearance, on "The Ed Sullivan Show" in New York. The Beatles made their first appearance on "Ed Sullivan," America's must-see weekly variety show on that day, and officially kicked off Beatlemania.
The Beatles, John Lennon, left, George Harrison, Ringo Starr and Paul McCartney, arrive at Munich, Germany, airport on June 23, 1966.
John Lennon is seen at a news conference at the Americana Hotel in New York on May 13, 1968.
John Lennon and his wife Yoko Ono raise their fists as they join a protest in this Feb. 5, 1972, photo in front of British Overseas Airways Corp. offices on Fifth Avenue in Manhattan. The demonstrators called for the withdrawal of British troops from Northern Ireland.
John Lennon and his wife, Yoko Ono, walk around in their New York City neighborhood in 1980.
John Lennon and Yoko Ono on Dec. 8, 1980, on the last day of Lennon's life captured by Annie Liebovitz.
New York City police hold spectators behind barricades on Dec. 9, 1980, the day after former Beatle John Lennon was shot and killed in front his residence at the Dakota.
Police hold spectators back from the gated archway of the Dakota building in New York City in this Dec. 9, 1980, photo, the day after John Lennon was murdered.