A comparsa is a group of singers, musicians and dancers that take part in carnivals and other festivities in Spain and Latin America. Its precise meaning depends on the specific regional celebration. The most famous comparsas are those that participate in the Carnival of Santiago de Cuba. In Brazil, comparsas are called carnival blocks, as those seen in the Carnival of Rio de Janeiro and other Brazilian carnivals. In the US, especially at the New Orleans Mardi Gras, comparsas are called krewes, which include floats.