Knebworth Festival takes place at Knebworth Hall, Hertfordshire, England, UK, Europe. Headliners are
Deep Purple, supported by Scorpions,
Meat Loaf, UFO, Mama's Boys, Blackfoot, Alaska and Mountain.
Deep Purple asttempt to make their performance the loudest British concert sound ever , at that point the record was still held by The Who at Charlton 74. There is no record of whether the mighty Purps actually achieved their ear-splitting target.
Meat Loaf performs with his leg in plaster, having fractured it by falling off a stage in Australia.