A segment of the jam session, 4 minutes and 30 seconds in length, appears in the documentary film Let It Be.
The participants in that session are John Lennon on vocals and 6-string bass, George Harrison on guitar, Paul McCartney on piano, Ringo Starr on drums, George Martin on maracas and Billy Preston at the organ; also participating in the jam, but not heard on the released version, was Linda Eastman's six-year-old daughter Heather.
[3][7] In the early part of the jam, Lennon sings the main lyric with interjections from Harrison.
Heather adds wordless vocals, which in the 2021 miniseries The Beatles: Get Back, appear to be imitating Yoko Ono.
[2] The earlier jam was much different, described by Beatles bootleg scholars Doug Sulpy and Ray Schweighardt as "sounding like a cross between the traditional 'Sailor's Hornpipe' and a slowed down rendition of Neal Hefti's 'Batman', as played on slide guitar".