An Early Glimpse of the Boss
That was an underestimate. After playing three songs singer Brian Fallon introduced a special guest to the stage - none other than Mr Springsteen himself. Amid cries of "B-R-U-U-U-C-E!" they tore through album title track The 59 Sound. Bruce then enjoyed the rest of the band's set from the side of the stage.
You can watch the track in full now on the Glastonbury website.