The Beatles - hello goodbye, 1967

"The song originated when, in response to a question from Beatles aide Alistair Taylor about songwriting, McCartney sat down at a harmonium and asked Taylor to say the opposite of whatever he said. The completed song includes a musical coda, which was improvised by the Beatles when they were recording the track in October 1967. Unimpressed with the composition, Lennon pushed for "I Am the Walrus" to be the single's A-side, before reluctantly accepting that "Hello, Goodbye" was the more commercial-sounding of the two sides. The Beatles produced three promotional films for the song, one of which was shown on The Ed Sullivan Show in America. Due to the regulations against lip-syncing on British television, none of the clips were aired there."