Over the years, John Lennon wrote a number of angry letters to Paul McCartney. The songwriting pair famously feuded over the years, and Lennon made his feelings toward his former bandmate clear through his strong language. In one letter, Lennon took issue with the way McCartney described The Beatles’ impact on music. He thought McCartney overstated the band’s importance.
By the late 1960s, tensions in The Beatles rose, and they grew increasingly frustrated with one another. Lennon and McCartney were particularly irritable with one another, which they expressed through songs in their solo careers.
“We were writing songs at each other,” McCartney said on The Howard Stern Show. “Like weaponizing songs.”
In McCartney’s “Too Many People,” he seemed to poke at Lennon and Yoko Ono’s anti-war activism. Lennon hit back with “How Do You Sleep?” In it, he wrote, “Those freaks was right when they said you was dead,” and “The only thing you done was yesterday/And since you’ve gone you’re just another day.”
Source: Emma McKee/cheatsheet.com