George Harrison (Homer's Barbershop Quartet), Ringo Starr (Brush With Greatness) and Paul McCartney (Lisa the Vegetarian). There is an episode dedicated to the memory of George Harrison. John Lennon died long before the show premiered, however his song 'Mother' was used in an episode, meaning all four Beatles' voices have appeared on the show in some shape or form.
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Things You Didn't Know about The Simpsons
FanfictionHere are some mind-blowing facts that you probably didn't know about the Simpsons.
