Blocos are the street bands and groups that are the main popular expression in Rio de Janeiro Carnival in Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

. These demonstrations are mixed under the term "street carnival", a term that still includes the bandstands and parades at Rio Branco Avenue, and happen during a period of about one month (beginning before and finishing after Carnival).

The biggest bloco is the Cordão do Bola Preta that attracts some 2,000,000 people to downtown Rio. The second biggest is Monobloco

Monobloco

Monobloco is a Brazilian bloco, or street band, that plays during Carnaval in Rio de Janeiro and is also a professional touring show. Unlike most of Rio's blocos, which tend play one type of music , Monobloco has become extremely popular among younger people because of its 'fresh' sound, playing a...

 that attracts 80,000 people at Copacabana Beach.