Sir Paul McCartney has announced that he thinks many of his songs are "rubbish".

"Some of my albums - I can't believe what I was on," the former Beatles star confessed to The Mirror.

Speaking about his 1986 album, Press To Play, he added, "I read the tracklist and I think, 'Wonder how that goes?'"

McCartney has also admitted that he dyes his hair, but denies that he does so on the orders of wife Heather Mills.

He explained, "Seeing my image looking older hits me. I just have to come to terms with it. Ten years before I met [Heather] I was thinking about dyeing my hair.

"I tried it in Australia - looked cool until I went on stage. Then this blue liquid poured down my forehead. Highly embarrassing."