A concert party, also called a Pierrot troupe, is the collective name for a group of entertainers, or Pierrots, popular in Britain during the first half of the 20th century. The variety show given by a Pierrot troupe was called a Pierrot show.
Concert parties were travelling shows of songs and comedy, often put on at the seaside and opening with a Pierrot number.
In 1891, the singer and banjoist Clifford Essex returned from France, having admired the Pierrots he had seen there, and decided to create a troupe of English Pierrot entertainers. Thus began the tradition of seaside Pierrots in pointed hats and black or coloured costumes who sang, danced, juggled, and joked on the piers of Brighton, Margate and Blackpool from the 1890s until the 1950s. The style of performance attracted artists from music hall and variety theatre. Some performers, such as Neville Kennard, were known as specialists in the field.
Immensely popular in Great Britain from the 1920s to the 1940s, concert parties were also formed by several countries' armed forces during the First and Second World Wars. During the Second World War, the British Armed Forces' concert party became known as the Entertainments National Service Association (ENSA), later succeeded by the Combined Services Entertainment (CSE).
As other forms of entertainment (particularly television) replaced variety shows in general, concert parties largely died out during the 1950s. This form of entertainment has been described by Roy Hudd as long-gone and much lamented.
The most famous fictitious concert party outside the armed forces was The Good Companions in J. B. Priestley's eponymous novel.