"Magical Mystery Tour" is a song by The Beatles, the opening track and theme song for the album, double EP and TV film of the same name. Richie Unterberger of Allmusic called it "a pleasant, get-up-and-go tune, but not one of the Beatles' very best songs." Unlike the theme songs for their other film projects, it was not released as a single.
The song is credited to Lennon/McCartney, though written primarily by Paul McCartney. McCartney said it was co-written. John Lennon said, "Paul's song. Maybe I did part of it, but it was his concept.". In 1972, Lennon said, "Paul wrote it. I helped with some of the lyric."
McCartney said the "Roll up! Roll up!" introduction was inspired by a barker. The remaining lyrics explain in a general way the premise of the film: a mystery tour of the type that was popular in Britain when the Beatles were young. Lennon and McCartney expanded the tour to make it magical, which allowed it to be "a little more surreal than the real ones."
Recording began on 25 April 1967, less than a week after the final sessions for Sgt. Pepper's Lonely Hearts Club Band. The song was not complete when the session began and much of the evening was spent in rehearsals, but by...