The album documents King Crimson 's performance at the Hyde Park Festival of July 5 , 1969 , held in London , England . It has been estimated that half a million people attended this outdoor concert , which was headlined by the Rolling Stones . King Crimson were the opening act . Their setlist was cut for the occasion , and the last track was much shorter than usual . Nonetheless , the consensus was that their performance was a success , which significantly increased the band 's reputation
Hyde Park Festival of July 5 , 1969
The Stones in the Park
King Crimson Live in Hyde Park, London