Women wearing body paint dance at the “Rua do Mercado” band Carnival parade in Rio de Janeiro, February 27. The women said they were topless to defend the right of women to be topless on Rio's beaches, as they joined one of many parades before the official start of Carnival on February 28. (Photo by Silvia Izquierdo/Associated Press)

A dancer from the Rosas de Ouro samba school performs during a Carnival parade in Sao Paulo, March 1. (Photo by Andre Penner/Associated Press)

A member of the Dragoes da Real samba school performs during Sao Paulo's Carnival parade at the Sambodromo, February 28. (Photo by Ricardo Bufolin/Getty Images)

A dancer from the Academicos do Tatuape samba school performs during a Carnival parade in Sao Paulo, March 2. (Photo by Andre PennerAssociated Press)

Dancers from the Nene de Vila Matilde samba school perform on a float during a Carnival parade in Sao Paulo, March 2. (Photo by Andre Penner/Associated Press)

A dancer from the Academicos do Tatuape samba school performs during a Carnival parade in Sao Paulo. (Photo by Andre PennerAssociated Press)

A dancer from the Nene de Vila Matilde samba school performs during a Carnival parade in Sao Paulo, March 2. (Photo by Andre Penner/Associated Press)

A reveller takes part in the annual block party known as "Ceu na Terra" or (or Sky on Earth), one of the many carnival parties to take place in the neighbourhoods of Rio de Janeiro March 1, 2014. The Rio de Janeiro Carnival will be held from February 28 to March 4. (Photo by Pilar Olivares/Reuters)

Revelers kiss during 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. (Photo by Silvia Izquierdo/AP Photo)

A performer from the Imperio da Tijuca samba school parades on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday, March 2, 2014. (Photo by Felipe Dana/AP Photo)

A performer from the Imperio da Tijuca samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday, March 2, 2014. (Photo by Nelson Antoine/AP Photo)

A reveler of the Dragoes da Real samba school perform during the first night of carnival parade at the Sambadrome in Sao Paulo, Brazil on March 01, 2014. (Photo by Nelson Almeida/AFP Photo)

A reveler of the Mocidade Alegre samba school performs during the second night of carnival parade at the Sambadrome in Sao Paulo, Brazil on March 1, 2014. (Photo by Nelson Almeida/AFP Photo)

A reveler of the Vai-Vai samba school performs during the first night of carnival parade at the Sambadrome in Sao Paulo, Brazil on March 01, 2014. (Photo by Nelson Almeida/AFP Photo)

A reveller from the Perola Negra samba school takes part in the Special Group category of the annual Carnival parade in Sao Paulo's Sambadrome March 1, 2014. (Photo by Paulo Whitaker/Reuters)

A reveler holds a bottle of sparkling wine as he drives a car 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. (Photo by Felipe Dana/AP Photo)

Brazilian model Sabrina Sato from the Gavioes da Fiel samba school takes part in the Special Group category of the annual Carnival parade in Sao Paulo's Sambadrome March 1, 2014. (Photo by Paulo Whitaker/Reuters)

Revelers of the Dragoes da Real samba school perform during the first night of carnival parade at the Sambadrome in Sao Paulo, Brazil on March 01, 2014. (Photo by Nelson Almeida/AFP Photo)

A reveler of the Gavioes da Fiel samba school performs during the second night of carnival parade at the Sambadrome in Sao Paulo, Brazil on March 1, 2014. Gavioes da Fiel's theme for this year's carnival is an homage to Brazilian former football star Ronaldo. (Photo by Nelson Almeida/AFP Photo)

A reveler of the Rosas de Ouro samba school performs during the first night of carnival parade at the Sambadrome in Sao Paulo, Brazil on March 01, 2014. (Photo by Nelson Almeida/AFP Photo)

A dancer from the Tom Maior samba school performs during a carnival parade in Sao Paulo, Brazil, Saturday, March 1, 2014. (Photo by Andre Penner/AP Photo)

Soccer player Ronaldo (c) participates at the Gavioes da Fiel samba school during the second night of carnival parade at the Sambadrome in Sao Paulo, Brazil on March 01, 2014. (Photo by Miguel Schincariol/AFP Photo)

A dancer from the Rosas de Ouro samba school performs during a carnival parade in Sao Paulo, Brazil, Saturday, March 1, 2014. (Photo by Andre Penner/AP Photo)

Revelers of the Vai-Vai samba school perform during the first night of carnival parade at the Sambadrome in Sao Paulo, Brazil on March 01, 2014. (Photo by Nelson Almeida/AFP Photo)

A reveller from the Vai Vai samba school takes part in the first night of the Special Group category of the annual Carnival parade in Sao Paulo's Sambadrome March 1, 2014. (Photo by Paulo Whitaker/Reuters)

Performers from the Imperio da Tijuca samba school parade on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday, March 2, 2014. (Photo by Felipe Dana/AP Photo)

A performer from the Imperio da Tijuca samba school parades on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday, March 2, 2014. (Photo by Felipe Dana/AP Photo)