In Beatles '64, the new documentary which charts the impact of the band's first US tour and how it catapulted them to global superstardom, Paul McCartney makes a suggestion as to why they achieved so much so quickly.
“When we came, it was quite shortly after Kennedy had been assassinated," he said.
"Maybe America needed something like The Beatles to be lifted out of sorrow."
Beatles scholars and cultural historians have long remarked upon how much of a lift the band gave to an America in mourning.
But was McCartney right? Was the rise of the world's most famous band partly down to the murder of the 35th president of the United States?
Did The Beatles crack America because Kennedy was killed?