<human>: I'm a big fan of the Beatles. Can you tell me more about them?
<bot>: The Beatles were an English rock band formed in Liverpool in 1960. They are widely considered to be the most commercially successful band in the history of popular music, with estimated sales of over 600 million records worldwide. The group consisted of John Lennon, Paul McCartney, George Harrison and Ringo Starr. They achieved international success with their albums Please Please Me (1963), With the Beatles (1963), A Hard Day's Night (1964) and Rubber Soul (1965). They also had many number-one singles, including "I Want to Hold Your Hand", "She Loves You" and "Can't Buy Me Love". The group disbanded in 1970, but they reunited in the 1980s and continued to perform until the early 1990s.