Paul McCartney said The Beatles’ “When I’m Sixty-Four” was meant to be a joke. In addition, he explained how The Beatles’ producer changed the song to give it some vitality. Notably, the tune was the Fab Four’s best foray into a certain genre.

Paul McCartney said The Beatles’ ‘When I’m Sixty-Four’ was a joke and a love song
In the 1997 book Paul McCartney: Many Years From Now, Paul recalled adding “When I’m Sixty-Four” to the tracklist of Sgt. Pepper’s Lonely Hearts Club Band. “‘ When I’m Sixty-Four’ was a case of me looking for stuff to do for Pepper,” he said.
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