Music legend Sir Paul McCartney was unhappy with his role as bassist when he joined the Beatles - because he feared he would be less famous than his bandmates.
The 64-year-old says being handed the "loser role" gave him even more determination to become the band's frontman.
He says, "At first it was the loser role in the group. It's usually the fat guy who stands at the back. So I was a bit unhappy when I got that job. I wanted to be up front with the guitar."
The star also confessed to being in awe of John Lennon when the group first started.
He says, "He was a year and a half older than me and you really look up to people like that. But it's funny because I don't think I had that same feeling with Ringo, who I think was a few months older than John. John was a pretty impressive cat. Being a year and a half older and going to art school, all that was a pretty cool combination for us."