During the hour-long drive, McCartney began improvising a lyric to “serve as a hopeful message” for the child, Spitz wrote: “Hey Jools, don’t make it bad …”
McCartney later changed the name to Jude.
"He was just trying to console me and Mum," Julian Lennon told Rolling Stone.
The song premiered in Great Britain on "The David Frost Show," with the crowd memorably gathering around the band to join in the song's coda, which takes up the final three minutes of the song.
Although the show was pre-recorded, it was the Beatles’ first public singing appearance since August 1966.
The song remains a staple at McCartney’s concerts. Fifty years have not dimmed the song’s luster.