Can't hear you: Bruce Springsteen at the Hard Rock Calling music festival in Hyde Park, London. PIC: Lewis Whyld/PA Wire

Rock legends Bruce Springsteen and Sir Paul McCartney had the power turned off while live on stage in Hyde Park.

The wrinkly rockers defied a sound curfew to carry on playing for fans at Hard Rock Calling.

Beatle Sir Paul joined Springsteen on-stage near the end of his three hour-long set.

They played Fab Four classics I Saw Her Standing There and Twist and Shout, before being abruptly silenced for exceeding the curfew by 30 minutes.

It meant the two members of pop music aristocracy were forced to quit the stage in silence in front of stunned fans.

That trigger an angry outburst by Springsteen’s guitarist on Twitter.

Steven Van Zandt wrote: “One of the great gigs ever in my opinion. But seriously, when did England become a police state?

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

“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?”