Bruce Springsteen might've stared down a range of establishment foes in his day, but he and fellow rock icon Paul McCartney met their match in London this weekend.    

After more than three hours of E Street fare at the Hard Rock Calling fest in Hyde Park, we listened as the fab duo knocked off a rousing "I Saw Her Standing There" and "Twist and Shout."  

Then, abruptly, there was no more "Shout" left.   

The Saturday night concert had gone over its 10:30 p.m. curfew, and so the plug was pulled on a pairing that the New Jersey native said he had waited 50 years for.   

There was no chance to say thanks or perform a reported encore song.  

The immediate reaction of the crowd around us was first disbelief ... then (loud) booing.    

Which was echoed by Bruce wingman and Soprano regular Steven Van Zandt when he later tweeted about the U.K.