Sir Paul McCartney

The Beatles legend suffered from stage fright during his early days with the Fab Four and even admitted that he contemplated quitting music as a result.

In a Q+A on his website back in 2016, the music icon said: "I remember nearly giving it all up when we were doing a concert in Wembley – which was a Poll-Winners concert – in the really early days of The Beatles.

"And I remember feeling physically sick with a knot in my stomach thinking, 'I should give this up, this is just too painful, what am I doing?' I got over it. And as you can see I didn't give it up!"