A reveller takes part in the annual block party Escravos da Maua as part of pre-carnival festivities in Rio de Janeiro, Brazil, February 4, 2018. (Photo by Ricardo Moraes/Reuters)





A reveler poses for a picture during the Perola da Guanabara street party at the Paqueta island in the Guanabara bay in Rio de Janeiro, Brazil, Saturday, February 3, 2018. Merrymakers take to the streets in hundreds of open-air “bloco” parties ahead of Rio's over-the-top Carnival, the highlight of the year for many. (Photo by Leo Correa/AP Photo)





Revellers take part in the annual block party known as “Cordao do Boitata”, during carnival festivities in Rio de Janeiro, Brazil February 4, 2018. (Photo by Pilar Olivares/Reuters)





A reveller takes part in an annual block party known as “Ceu na Terra” (Heaven on Earth), during carnival festivities in Rio de Janeiro, Brazil February 3, 2018. (Photo by Pilar Olivares/Reuters)





Revellers take part in the annual block party known as “Cordao do Boitata”, during carnival festivities in Rio de Janeiro, Brazil February 4, 2018. (Photo by Pilar Olivares/Reuters)





A woman takes a selfie with Kaike the dog, both decked out in costumes for the “Blocao” dog carnival parade along Copacabana beach in Rio de Janeiro, Brazil, Sunday, February 4, 2018. Carnival goes to the dogs as pet owners take to the streets for their own party, with their four-legged friends in ornate costumes. (Photo by Silvia Izquierdo/AP Photo)





Revellers celebrate the pre-carnival street parade of the “Perola da Guanabara” (Guanabara Pearl) street carnival group at Paqueta Island, on Guanabara Bay in Rio de Janeiro, Brazil, on February 3, 2018. (Photo by Mauro Pimentel/AFP Photo)





Revellers take part in an annual block party known as “Academicos do Baixa Augusta” (Academics of Baixa Augusta neighbourhood ), during carnival festivities in Sao Paulo, Brazil on February 4, 2018. (Photo by Nacho Doce/Reuters)





A reveller dances as he parades along a street at the Carnival of Jacmel, Haiti, February 4, 2018. (Photo by Andres Martinez Casares/Reuters)





Revellers take part in an annual block party known as “Ceu na Terra” (Heaven on Earth), during carnival festivities in Rio de Janeiro, Brazil February 3, 2018. (Photo by Pilar Olivares/Reuters)





Revellers stand at the window of a house during the annual block party Escravos da Maua as part of pre-carnival festivities in Rio de Janeiro, Brazil, February 4, 2018. (Photo by Ricardo Moraes/Reuters)





A reveller takes part in an annual block party known as “Ceu na Terra” (Heaven on Earth), during carnival festivities in Rio de Janeiro, Brazil February 3, 2018. (Photo by Pilar Olivares/Reuters)





Revellers take part in the annual block party known as “Cordao do Boitata”, during carnival festivities in Rio de Janeiro, Brazil February 4, 2018. (Photo by Pilar Olivares/Reuters)





Revellers take part in the annual block party known as “Cordao do Boitata”, during carnival festivities in Rio de Janeiro, Brazil February 4, 2018. (Photo by Pilar Olivares/Reuters)





Revellers covered in mud parade along a street at the Carnival of Jacmel, Haiti, February 4, 2018. (Photo by Andres Martinez Casares/Reuters)





Revellers kiss each other as take part in an annual block party known as “Ceu na Terra” (Heaven on Earth), during carnival festivities in Rio de Janeiro, Brazil February 3, 2018. (Photo by Pilar Olivares/Reuters)





A reveler wearing lights sits on a bench during the dusk as she takes part in the Perola da Guanabara street party at Paqueta island in Guanabara Bay in Rio de Janeiro, Brazil, Saturday, February 3, 2018. (Photo by Leo Correa/AP Photo)