John Lennon and Paul McCartney penned some of the biggest hits in the history of music but they didn't always see eye-to-eye and were both critical of each other's work

Music legend Paul McCartney, whose alias inspired the name of a legendary rock band, has revealed the backstory of the strain with his former bandmate, John Lennon, after The Beatles went their separate ways in 1970.

John Lennon and Paul McCartney wrote classic after classic for The Beatles and are regarded as two of the greatest songwriters of all time. In the band's early days, Paul and John wrote together at their childhood homes but as they got older and their styles changed,