They split when Paul McCartney said he was leaving the band in April 1970 and on 31 December 1970, the band officially split.
But it was not the end of The Beatles. Each of them went on to have very successful solo careers with Paul McCartney, now Sir Paul, still recording and performing.
Sadly, on 8 December 1980, John Lennon was going back to his flat in New York when he was shot dead by a fan who wanted him to autograph a record.
In 1999 George Harrison survived a stabbing after an intruder broke into his house. But on 29 November 2001, he died after a long battle with cancer.
But The Beatles' reputation as the most popular original boy band in the world will always be remembered.
The Beatles: what you say
When did they split up?
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