A participant peeks from his costume before the start of the the annual London Pantomime Horse Race in Greenwich, Britain December 13, 2015. (Photo by Neil Hall/Reuters)

Fireworks explode around the London Eye wheel, the Big Ben clock tower and the Houses of Parliament to mark the beginning of the New Year in London, Britain, January 1, 2016. (Photo by Toby Melville/Reuters)

Swimmers in fancy costume take part in the New Year's Day swim at Saundersfoot in Wales, Britain, January 1, 2017. (Photo by Rebecca Naden/Reuters)

Model Daisy Lowe presents a creation at the Katie Eary catwalk show during London Fashion Week Men's 2017 in London, Britain January 7, 2017. (Photo by Neil Hall/Reuters)

A model wears a floral head dress as she promotes a chain of garden centres at the Royal Horticultural Soceity's Chelsea Flower Show in London, Britain, May 18, 2015. (Photo by Toby Melville/Reuters)

A man has an egg smashed on his head to raise money for charity during the World Egg Throwing Championships and Vintage Day in Swaton, Britain June 28, 2015. (Photo by Darren Staples/Reuters)

Clowns and entertainers gather to attend an annual service of remembrance in honour of British clown Joseph Grimaldi at All Saints Church in Haggerston in London, Britain, February 5, 2017. (Photo by Toby Melville/Reuters)

A model poses backstage at the Topshop Unique catwalk show during London Fashion Week in London, Britain February 19, 2017. (Photo by Neil Hall/Reuters)