Back in 1970 The Beatles split after a decade together becoming what is probably the most influential band in history.
And over the years there have been all kinds of rumours surrounding what caused the breakup.
McCartney and Lennon certainly had a clash and fans have debated how much of an influence Yoko Ono, John’s wife, was on this.
But now in a new interview, McCartney has revealed she was not to blame.
Speaking with Howard Stern on SiriusXM, the 76-year-old said: “There was a meeting where John came in and said, ‘I’m leaving the group.’
“And looking back on it, he’d reached that stage in his life. We all had.
“Even though we thought she was intrusive because she used to sit in on the recording sessions and we’d never had anything like that.
“But looking back on it, you think, ‘The guy was totally in love with her. And you’ve just got to respect that.’ So we did. And I do.”
He added: “The nice thing for me is seeing John there, him being right-handed, me being left-handed, it felt to me like I was looking in a mirror.
“Obviously, it was very successful. So that was a way I had learned to write and it was the way I liked to write and Elvis [Costello, his new collaborator] was very happy to work like that.
“So it was like a repeat of that process, and so he was John, basically, and I was Paul.”
