A dancer from the Nene de Vila Matilde samba school performs during a carnival parade in Sao Paulo, Brazil, Sunday, March 2, 2014. (AP Photo/Andre Penner)
A dancer from the Academicos do Tatuape samba school performs during a carnival parade in Sao Paulo, Brazil, Sunday, March 2, 2014. (AP Photo/Andre Penner)
Dancers from the Academicos do Tatuape samba school perform during a carnival parade in Sao Paulo, Brazil, Sunday, March 2, 2014. (AP Photo/Andre Penner)
Mask-wearing revelers pose for a photo during the the Banda de Ipanema Carnival parade in Rio de Janeiro, Brazil, Saturday, March 1, 2014. Streets across Brazil have been swamped with Carnival revelers, with the largest parties attracting more than 1 million merrymakers. (AP Photo/Silvia Izquierdo)
Drummers from the Academicos do Tatuape samba school perform during a carnival parade in Sao Paulo, Brazil, Sunday, March 2, 2014. (AP Photo/Andre Penner)
Dancers from the Academicos do Tatuape samba school perform during a carnival parade in Sao Paulo, Brazil, Sunday, March 2, 2014. (AP Photo/Andre Penner)
A reveler dressed as a character from the movie Avatar poses for a photo at the 'Ceu na Terra' block party during Carnival celebration in Rio de Janeiro, Brazil, Saturday, March 1, 2014. Rio de Janeiro's over-the-top Carnival is the highlight of the year for many local residents. Hundreds of thousands of merrymakers will take to Rio's streets in the nearly 500 open-air "bloco" parties. (AP Photo/Felipe Dana)
Dancers from the Aguia de Ouro samba school perform on a float during a carnival parade in Sao Paulo, Brazil, Sunday, March 2, 2014. (AP Photo/Andre Penner)
Dancers from the Nene de Vila Matilde samba school perform on a float during a carnival parade in Sao Paulo, Brazil, Sunday, March 2, 2014. (AP Photo/Andre Penner)
RIO DE JANEIRO, BRAZIL - MARCH 03: Members of Imperatriz Leopoldinense Samba School during their parade at 2014 Brazilian Carnival at Sapucai Sambadrome on March 03, 2014 in Rio de Janeiro, Brazil. Rio's two nights of Carnival parades begin on March 2 in a burst of fireworks and to the cheers of thousands of tourists and locals who have previously enjoyed street celebrations (known as "blocos de rua") all around the city. (Photo by Buda Mendes/Getty Images) (2014 Getty Images)