Steelpans (also known as steel drums or pans, and sometimes, collectively with other musicians, as a steel band or orchestra) is a musical instrument originating from Trinidad and Tobago. Steel pan musicians are called pannists.
French planters and their slaves emigrated to Trinidad during the French Revolution (1789) from Martinique, including a number of West Africans, and French creoles from Saint Vincent, Grenada, Saint Lucia and Dominica, establishing a local community before Trinidad and Tobago were taken from Spain by the British. The celebration of carnivale had arrived with the French. Slaves, who could not take part in carnival, formed their own, parallel celebration called canboulay.
Today this tradition continues especially during the major Caribbean Carnivals. Take a look