The relationship between John Lennon and Paul McCartney had become increasingly strained in the latter years of The Beatles, with the pair exchanging barbs through their solo music

The Beatles' success was largely driven by the songwriting prowess of Paul McCartney and John Lennon. They were the dynamic duo behind the band's phenomenal success, whether they were co-writing or independently crafting songs before sharing them with each other.

The Beatles went their separate ways in 1970, but John Lennon made a surprising offer to bandmate Paul McCartney years later, and his response was surprising to many