Kaiso is a type of music popular in Trinidad and Tobago, and other countries, especially of the Caribbean, such as Grenada, Barbados, St. Lucia and Dominica, which originated in West Africa, and later evolved into calypso music.
Kaiso music has its origins in West Africa (particularly in present day Nigeria) and in the Kingdom of Kongo and was brought over by the slaves who (in the early history of the art form) used it to sing about their masters. The people would also gather in "kaiso" tents where a griot or lead singer would lead them in song. Many early kaisos were sung in French Creole by an individual called a chantwell. Kaiso songs are generally narrative in form and often have a cleverly concealed political subtext. Kaiso performers are known as kaisonians.
In Barbados, kaiso refers to a form of stage-presented calypso, such as at the crop over festival.