 Grimaldi is remembered today in an annual memorial service on the first Sunday in February at Holy Trinity Church in Hackney . The service , which has been held since the 1940s , attracts hundreds of clown performers from all over the world who attend the service in full clown costume . In 2010 a coffin @-@ shaped musical memorial dedicated to Grimaldi , made of musical floor tiles , was installed in Joseph Grimaldi Park . The bronze tiles are tuned so that when danced upon it is possible to play " Hot <unk> " . 
