McCartney 'refuses to sign fan's bottom'

Paul McCartney has reportedly refused a fan's request to sign their bottom.

The singer-songwriter addressed the supporter's wish during his gig at the recent Hard Rock Calling festival in London, reports Metro.

The suggestion was written on a sign held up by an audience member.

"We got one here that says, 'Sign my butt and I'll get it tattooed'," McCartney said from the stage.

He added: "The answer to that is no."