Question: when did the rolling stones play in hyde park
Answer: The Stones in the Park generally refers to a free outdoor festival held in Hyde Park on 5 July 1969 , headlined by The Rolling Stones and featuring Third Ear Band , King Crimson , Screw , Alexis Korner 's New Church , Family and The Battered Ornaments , in front of a crowd estimated at between 250,000 and 500,000 fans .