Paul McCartney and John Lennon were responsible for The Beatles' huge success, but not all of the band's songs were loved by the pair, including one of their biggest hits

McCartney also revealed how he came to understand the bass guitar's transformational power while recording the Beatles' "Michelle"

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.