Revelers dance during the “Ceu na Terra”, or Heaven on earth, carnival parade in Rio de Janeiro, Brazil, Saturday, February 7, 2015. Rio's over-the-top Carnival is the highlight of the year for many local residents. Hundreds of thousands of merrymakers are beginning to take to the streets in open-air “blocos” parties. (Photo by Felipe Dana/AP Photo)

People and babies wearing carnival costumes watch the “Ceu na Terra”, or Heaven on earth, carnival parade from the window of a house in Rio de Janeiro, Brazil, Saturday, February 7, 2015. (Photo by Felipe Dana/AP Photo)

A diver waits after getting surrounded by revelers in the “Ceu na Terra”, or Heaven on earth, carnival parade in Rio de Janeiro, Brazil, Saturday, February 7, 2015. (Photo by Felipe Dana/AP Photo)

A reveler dances on stilts during the “Ceu na Terra”, or Heaven on earth, carnival parade in Rio de Janeiro, Brazil, Saturday, February 7, 2015. (Photo by Felipe Dana/AP Photo)

Revelers play the trumpet during the “Ceu na Terra”, or Heaven on earth, carnival parade in Rio de Janeiro, Brazil, Saturday, February 7, 2015. (Photo by Felipe Dana/AP Photo)

Revelers enjoy the “Ceu na Terra”, or Heaven on earth, carnival parade in Rio de Janeiro, Brazil, Saturday, February 7, 2015. (Photo by Felipe Dana/AP Photo)

Revellers walk to the annual block party known as the “Suvaco do Cristo” (Armpit of Christ), one of the many pre-carnival parties to take place in the neighbourhoods of Rio de Janeiro, February 8, 2015. (Photo by Ricardo Moraes/Reuters)

Revellers attend the annual block party known as the “Suvaco do Cristo” (Armpit of Christ), one of the many pre-carnival parties to take place in the neighbourhoods of Rio de Janeiro, February 8, 2015. (Photo by Ricardo Moraes/Reuters)

Revellers attend the annual block party known as the “Suvaco do Cristo” (Armpit of Christ), one of the many pre-carnival parties to take place in the neighbourhoods of Rio de Janeiro, February 8, 2015. (Photo by Ricardo Moraes/Reuters)

A reveller dances during the annual block party known as the “Suvaco do Cristo” (Armpit of Christ), one of the many pre-carnival parties to take place in the neighbourhoods of Rio de Janeiro, February 8, 2015. (Photo by Ricardo Moraes/Reuters)

Revellers dance inside a bank during the annual block party known as the “Suvaco do Cristo” (Armpit of Christ), one of the many pre-carnival parties to take place in the neighbourhoods of Rio de Janeiro, February 8, 2015. (Photo by Ricardo Moraes/Reuters)

A reveller rings the ball of a house after attending the annual block party known as the “Suvaco do Cristo” (Armpit of Christ), one of the many pre-carnival parties to take place in the neighbourhoods of Rio de Janeiro, February 8, 2015. (Photo by Ricardo Moraes/Reuters)

A reveller walks to the annual block party known as the “Suvaco do Cristo” (Armpit of Christ), one of the many pre-carnival parties to take place in the neighbourhoods of Rio de Janeiro, February 8, 2015. (Photo by Ricardo Moraes/Reuters)

Revelers dance during the “Ceu na Terra”, or Heaven on earth, carnival parade in Rio de Janeiro, Brazil, Saturday, February 7, 2015. (Photo by Felipe Dana/AP Photo)

Revelers perform during the “Ceu na Terra”, or Heaven on earth, carnival parade in Rio de Janeiro, Brazil, Saturday, February 7, 2015. (Photo by Felipe Dana/AP Photo)

Revelers enjoy the “Ceu na Terra”, or Heaven on earth, carnival parade in Rio de Janeiro, Brazil, Saturday, February 7, 2015. (Photo by Felipe Dana/AP Photo)

A reveler dressed as a clown jokes during the “Gigantes da Lira” carnival parade in Rio de Janeiro, Brazil, Sunday, February 8, 2015. (Photo by Felipe Dana/AP Photo)

Revelers perform during the “Gigantes da Lira” carnival parade in Rio de Janeiro, Brazil, Sunday, February 8, 2015. (Photo by Felipe Dana/AP Photo)

Women play samba music during a street party promoting black pride and encouraging Afro-Brazilian women to flaunt their curls in Rio de Janeiro, Brazil, Sunday, February 8, 2015. (Photo by Silvia Izquierdo/AP Photo)

A woman poses for a photo during a street party promoting black pride and encouraging Afro-Brazilian women to flaunt their curls in Rio de Janeiro, Brazil, Sunday, February 8, 2015. The party was sponsored by a beauty salon that encourages Afro-Brazilian women to enjoy their natural hair and resist social pressures to straighten it. Sunday's curl-power celebration in Rio de Janeiro is one of hundreds of street parties that are kicking off in the run-up to Carnival, which starts on Friday. (Photo by Silvia Izquierdo/AP Photo)

A reveler dances during the “Gigantes da Lira” carnival parade in Rio de Janeiro, Brazil, Sunday, February 8, 2015. (Photo by Felipe Dana/AP Photo)

Revelers dance as musicians perform during the “Gigantes da Lira” carnival parade in Rio de Janeiro, Brazil, Sunday, February 8, 2015. (Photo by Felipe Dana/AP Photo)

Dancers perform in a street party promoting black pride and encouraging Afro-Brazilian women to flaunt their curls in Rio de Janeiro, Brazil, Sunday, February 8, 2015. (Photo by Silvia Izquierdo/AP Photo)

Revelers perform during the “Gigantes da Lira” carnival parade in Rio de Janeiro, Brazil, Sunday, February 8, 2015. (Photo by Felipe Dana/AP Photo)