Paul McCartney and Bruce Springsteen silenced onstage in London

Paul McCartney was Bruce Springsteen’s surprise guest at Hard Rock Calling in Hyde Park, London.

McCartney joined Springsteen and his band onstage for versions of ‘I Saw Her Standing There’ and ‘Twist And Shout’ at the end of the three hour show.

Due to curfew restrictions imposed by Westminster Council, the organisers of the event turned off the microphones before the musicians were able to thank the crowd.

Steven Van Zandt, guitarist in Springsteen’s E Street Band, voice his dismay on Twitter. He also suggested that the group had intended to perform another song with McCartney.

We break curfews in every country but only English cops needs to "punish us" by not letting us leave until the entire crowd goes.

— ?Stevie Van Zandt?? (@StevieVanZandt) July 15, 2012

Is there just too much fun in the world? We would have been off by 11 if we'd done one more. On a Saturday night! Who were we disturbing?

— ?Stevie Van Zandt?? (@StevieVanZandt) July 15, 2012

English cops may be the only individuals left on earth that wouldn't want to hear one more from Bruce Springsteen and Paul McCartney!

— ?Stevie Van Zandt?? (@StevieVanZandt) July 15, 2012

I'm sorry but I have to be honest I'm pissed. Like I said, it didn't ruin the great night. But when I'm jamming with McCartney don't bug me!

— ?Stevie Van Zandt?? (@StevieVanZandt) July 15, 2012

Westminster Council denied that the decision to end the concert was made by the local authority.

Tonights Hyde Park Concert was finished by organisers. They were sticking to their licence for the event.

— Westminster City Council (@CityWestminster) July 14, 2012

Concert organisers, not the council, ended last night’s concert in Hyde Park to comply with their licence.

Licences are granted until certain times to protect residents in the area from noise late at night.

The concert had been due to end at 10.30pm, but overran by half an hour. Springsteen had already played for over three hours. Earlier in the evening he had been joined onstage by John Fogerty and Rage Against The Machine’s Tom Morello.