Thousands of people around the world armed themselves with fluffy pillows as they revisited a childhood tradition and battled it out for International Pillow ... in a row, Trafalgar Square was ...

Revellers take part in a giant pillow fight in Trafalgar Square on 'International Pillow Fight Day' on April 6, 2013 in London, England. Photo: Oli Scarff/Getty Images Revellers take part in a ...

London's pillow fight is happening RIGHT NOW in Trafalgar Square. It's the 7th time this event has happened in Trafalgar Square - the original event in 2008 was part of the world's "largest flashmob".