The Beatles' legendary appearance on The Ed Sullivan Show was watched on television by 73 million of the nation’s 191 million people, nearly 40%.

Joni Mitchell once said that this Beatles album sounded like "they had discovered Bob Dylan," and she's not the only one who thinks so.

Learn more about an early Beatles show that saw Paul McCartney get into a brawl with a bandmate on stage, below.

John Lennon assisted Paul with the lyrics but he was not a fan of the song. Looking back on it, he said: "Good piano lick, ...