It also seems that John was worried that Paul was trying to damage his own work, as cracks began to show in their relationship. The 1967 song 'Strawberry Fields Forever' was released as a double A-single with the Paul-penned 'Penny Lane'.

It remains a fascinating exercise to wonder how John Lennon and Paul McCartney felt about each other’s songs. Bands, and especially a band’s primary songwriters, are famously competitive. This explains why it’s so difficult to keep even the most successful groups together.

John Lennon's older son Julian Lennon opens up in a new interview about how he hasn't felt connected to the Beatles throughout his life, telling 'The Guardian': 'I’m not part of the inner circle — I never have been.

Julian Lennon, the eldest son of the legendary Beatles singer-songwriter John Lennon, says he and his father had a rather distant relationship. "You have to realise that when Dad left, when I was between three and five (it was a bit of a process),

"I'm just as curious as anybody else, although I do find myself going, 'how is it possible that there's another Beatles film?'"

I visited him on the odd occasion but we were very much on the outside." But Julian went on to reference his younger brother, Yoko Ono and Lennon's son Sean, as he praised their sibling relationship,

Despite his last name, John Lennon's son Julian Lennon wants to make it clear he rarely has the inside scoop on The Beatles. "I'm not part of the inner circle - I never have been," Julian, 61, shared in an interview with The Guardian published Sunday,