Mills is McCartney's biggest regret

Sir Paul McCartney has said that his marriage to Heather Mills is his biggest regret of the past ten years.

The Beatles singer, who divorced former model Mills in 2008 after six years together, said that he has to look at their 6-year-old daughter Beatrice to see the positive side of the marriage.

McCartney told Q magazine: "I suppose the marriage has to be a prime contender for mistake of the decade. But I don't want to down anyone.

"These things happen you know? But I tend to look at the positive side, which is that I have another beautiful daughter out of it.

"I've managed to feel quite fulfilled this decade. If I hadn't done my side project The Fireman I think I would wish I'd done that because it freshened ideas up for me."