"All Together Now" is a song by the English rock band the Beatles written primarily by Paul McCartney and credited to the Lennon–McCartney partnership. The song was recorded during the band's Magical Mystery Tour period, but remained unreleased until it was included on the Yellow Submarine soundtrack. It was released as a single in 1972 in European countries such as France and Germany, backed by "Hey Bulldog".

Yellow Submarine is the tenth studio album by the English rock band the Beatles, released in January 1969. It is the soundtrack to the animated film of the same name, which premiered in London in July 1968. The album contains six songs by the Beatles, including four new songs and the previously released "Yellow Submarine" and "All You Need Is Love". The remainder of the album is a re-recording of selections from the film's orchestral soundtrack by the band's producer, George Martin.