Sir Paul McCartney knew it was time to sack Beatles manager Allen Klein when he began having malevolent dreams about him.

The singer's relationship with Klein deteriorated towards the end of the band's reign, and McCartney started getting signs he had to break away.

He says, "I used to have dreams in which Allen Klein was an evil dentist.

"That was a bad sign. I just wanted to be as far away from Apple (Beatles label) as was possible."