Most people simultaneously blowing bubbles

Most people simultaneously blowing bubbles
Who
West Ham United FC
What
23680 total number
Where
United Kingdom (Upton ParkLondon)
When
On May 16, 1999, a total of 23,680 people in the soccer stadium blew glycerine bubbles into the air for 1 minute. The mass bubble-blowing event took place prior to West Ham United F.C.'s home Premier League fixture against Middlesbrough F.C., at the Boleyn Ground, Upton Park, London.