As you walk through east London this month, you may find lots of people clowning around. Clowns will gather in full costume, from painted faces to red noses, at All Saints Church in Haggerston from 3pm to pay tribute to the king of clowns, Joseph Grimaldi. The English actor, comedian and dancer became one of the most popular entertainers of the Regency era. The tradition began in 1946, and in 1967 clowns were given permission to attend in their costumes. After the service, clowns perform for the public. The event gets busy, so make sure you arrive early.