Soca is a form of dance music that originated in Trinidad and Tobago from calypso music. It originally combined the melodic lilting sound of calypso with insistent percussion (which is often electronic in recent music) and local chutney music. Soca music has evolved in the last 20 years primarily by musicians from Trinidad, Guyana, Saint Vincent and the Grenadines, Barbados, Saint Lucia, Antigua and Barbuda, some bands from Dominica, Saint Kitts and Nevis, Haiti, Jamaica and the Lesser Antilles.

The nickname of the Trinidad and Tobago national football team, the Soca Warriors, refers to this musical genre.

Taken from http://en.wikipedia.org/wiki/Soca_music