Springsteen and McCartney silenced at long London gig
16 July 2012 Last updated at 15:55 BST
Fans have criticised the decision to pull the plug on Bruce Springsteen and Sir Paul McCartney during a concert in London's Hyde Park.
Headline act Springsteen welcomed Sir Paul on stage for renditions of the Beatles' I Saw Her Standing There and Twist and Shout, but their microphones were turned off before they could thank the crowds.
Springsteen exceeded the time limit for the Hard Rock Calling event after playing for more than three hours.
Lizo Mzimba reports.