The Beatles

At the time, it was one of the most expensive ever created.

It’s just as historic and important as any of their other albums.

This controversy sparked death threats, becoming one of the reasons why they decided to stop touring.

They'd barely any time to reflect on their history-making first journey to America before moving on to the next project.

Fans didn't have to wait too long for another glimpse after their history-making first appearance.

Artists used to bang out killer albums in a hurry.

The world of rock music – and American culture in general – was turned upside down.

John Lennon ultimately called it a "lousy track of a great song."