From the link Bathy.
Performance[edit]
Hyde Park, seen here in 2007
The performers at the festival included Third Ear Band, Screw, King Crimson, Alexis Korner's New Church, Roy Harper, Battered Ornaments, Family, and The Rolling Stones.[14]
Fans started to arrive at the park with candles on 4 July in tribute to Jones, and the police allowed the park to be opened late so they could stay.[14] By the following morning, there were already 7,000 people.[16]:323 As with the Stones' performance at the infamous Altamont Free Concert later that year, the Hells Angels were hired as stewards to protect the stage and equipment,[2] something suggested by the Grateful Dead's manager Rock Scully, who was used to the Angels performing this service at free festivals in California.[12] According to Cutler, Jagger said that he was keen on doing a similar free concert in California at some time in the future.[12] At Hyde Park, fifty Angels patrolled the vicinity of the stage, though there was little resemblance other than a superficial one to their American counterparts. They performed their duties in exchange for a cup of tea.[12] In the event, there were only twelve arrests on the day and a subsequent police report claimed that the Angels were "totally ineffective".[12]