Despite wowing audiences round the world since the 60s, Sir Paul, 75, said: “Ever since I started performing there is a dream I still have which is you are in a stadium playing with The Beatles or with this band and people start leaving and it is like ‘OK what are we doing wrong’ we try to pull out the bigs ones but they’re still leaving.
Ignoring his fears, Sir Paul is back on the road with huge gigs full of Beatles classics lined up in Australia and New Zealand.
Insisting the songs feel fresh, he said: “It’s like rediscovering them.”
McCartney also addressed to ABC News the reason for the split, saying, "The business thing split us apart," referring to a new manager and new business practices for the release of "Let It Be," the band's final record together.
After the breakup, McCartney added, he wasn't sure "whether I was still going to continue in music." Fortunately for the music world, he ended up recording upward of 25 studio albums post-Beatles.
He dropped his most recent album, "New," in 2013, and he has worked with modern greats like Kanye West, about whom McCartney said, "People says he's eccentric ... which you'd have to agree with. He's a monster. He's a crazy guy that comes up with great stuff."
McCartney said that over the years, he kept in touch with fellow Beatle John Lennonbefore his death in 1980.
"I would make calls to John occasionally. We just talked kids and baking bread," he added.
