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.

Paul and John both lay claim to being the primary author of the 1966 song 'Eleanor Rigby'. Paul said he came up with the song's melody as he sat at his piano and the character in it was originally called Daisy Hawkins.