Work by Jake and Dinos Chapman also features. Previous examples of their black sense of humour include copulating blow-up sex dolls cast in bronze, in their Turner Prize show, and genuine Goya prints with cartoon heads. The exhibition runs from 24 January until 13 April. Despite its light-hearted theme, Hayward officials say they are deadly serious. Director Ralph Rugoff said: "Laughter is universal, it is something people in every culture can relate to. Humour, however, is socially specific."