"Get Back" is a song recorded by the English rock band the Beatles and Billy Preston, written by Paul McCartney, and credited to the Lennon–McCartney partnership. It was originally released as a single on 11 April 1969 and credited to "The Beatles with Billy Preston". The song is one of the few examples of John Lennon featuring prominently as lead guitarist. The album version of this song contains a different mix that features a studio chat between Paul McCartney and John Lennon at the beginning, which lasts for 20 seconds before the song begins, also omitting the coda featured in the single version, and with a final dialogue taken from the Beatles' rooftop concert. This version became the closing track of Let It Be (1970), which was released just after the group split up. The single version was later issued on the compilation albums 1967–1970, 20 Greatest Hits, Past Masters, and 1.

William Everett Preston was an American keyboardist, singer and songwriter whose work encompassed R&B, rock, soul, funk, and gospel. Preston was a top session keyboardist in the 1960s, backing Little Richard, Sam Cooke, Ray Charles, the Everly Brothers, Reverend James Cleveland, the Beatles and the Rolling Stones. He gained attention as a solo artist with hit singles "That's the Way God Planned It", the Grammy-winning "Outa-Space", "Will It Go Round in Circles", "Space Race", "Nothing from Nothing", and "With You I'm Born Again". Additionally, Preston co-wrote "You Are So Beautiful", which became a #5 hit for Joe Cocker.