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Performers from the Imperatriz Leopoldinense samba school pretend to play soccer as they hang on the wall of a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Tuesday, March 4, 2014. (AP Photo/Felipe Dana) ( Brazil Carnival )

Performers from the Unidos da Tijuca samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. (AP Photo/Nelson Antoine) ( Brazil Carnival )

A woman sits in front of a pile of discarded carnival costumes after carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. The costumes on display at the all-night parade that ended early Tuesday have made Rioís Carnival celebration the most famous in the world. But the handmade confections often have a short shelf life. As the tens of thousands of revelers stream out of the Sambadrome, a surprising number of them immediately abandon their costumes. (AP Photo/Felipe Dana) ( Brazil Trashing Carnival )

A member of Uniao da Ilha samba school performs on a float during its 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) ( 476570661 )

Performers from the Unidos da Tijuca samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Tuesday, March 4, 2014. (AP Photo/Nelson Antoine) ( APTOPIX Brazil Carnival )

Members pose before the start of the Portela samba school parade at 2014 Brazilian Carnival at Sapucai Sambadrome on March 03, 2014 in Rio de Janeiro, Brazil. Rio's two nights of Carnival parades began 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 Mario Tama/Getty Images) ( 476582415 )

Performers from the Unidos da Tijuca samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. (AP Photo/Silvia Izquierdo) ( APTOPIX Brazil Carnival )

A performer from the Unidos da Tijuca samba school parades on a float past the Sambadrome Arch during carnival celebrations in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. Brazil's Carnival is maintaining its frenetic pace, with hundreds of roving parties taking over Rio de Janeiro's streets and famed samba school parades heading into their final night. (AP Photo/Felipe Dana) ( APTOPIX Brazil Carnival )

Members of Mocidade samba school get ready prior to their entrance as part of the 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) ( 476548317 )

A performer from the Vila Isabel samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. Brazil's Carnival is maintaining its frenetic pace, with hundreds of roving parties taking over Rio de Janeiro's streets and famed samba school parades heading into their final night. (AP Photo/Felipe Dana) ( Brazil Carnival )

A member of Unidos da Tijuca 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 began 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) ( 476600553 )

Elaine da Silva Moraes tries on a boot discarded by performers after carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. Moraes is a "catadora," or trash picker, and hundreds of others like her, for whom Carnival represents an annual boon. Dressed in a patchwork of costume parts rescued from the detritus, Moraes fills plastic garbage bags with her treasures - feathers, props, headgear and costly fabrics that she re-sells or transforms into new costumes or clothing. (AP Photo/Felipe Dana) ( Brazil Recycling Carnival )

A performer from the Imperatriz Leopoldinense samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Tuesday, March 4, 2014. Brazil's Carnival is maintaining its frenetic pace, with hundreds of roving parties taking over Rio de Janeiro's streets and famed samba school parades heading into their final night. (AP Photo/Felipe Dana) ( APTOPIX Brazil Carnival )

A performer from the Uniao da Ilha do Governador samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, early Tuesday, March 4, 2014. Brazil's Carnival is maintaining its frenetic pace, with hundreds of roving parties taking over Rio de Janeiro's streets and famed samba school parades heading into their final night. (AP Photo/Silvia Izquierdo) ( Brazil Carnival )

Performers from the Imperatriz Leopoldinense samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Tuesday, March 4, 2014. (AP Photo/Silvia Izquierdo) ( Brazil Carnival )

Performers from the Unidos da Tijuca samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. Brazil's Carnival is maintaining its frenetic pace, with hundreds of roving parties taking over Rio de Janeiro's streets and famed samba school parades heading into their final night. (AP Photo/Felipe Dana) ( Brazil Carnival )

A performer from the Unidos da Tijuca samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. (AP Photo/Silvia Izquierdo) ( Brazil Carnival )

Members of Unidos da Tijuca 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 began 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) ( 476600559 )

Members of the Vila Isabel samba school perform during its parade at 2014 Brazilian Carnival at Sapucai Sambadrome on March 03, 2014 in Rio de Janeiro, Brazil. Rio's two nights of Carnival parades began 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 Mario Tama/Getty Images) ( 476582441 )

Members of Vila Isabel samba school perform 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) ( 476578899 )

Members of Imperatriz Leopoldinense Samba School perform 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) ( 476590481 )

A member of the Portela samba school poses outside the 2014 Brazilian Carnival at Sapucai Sambadrome on March 03, 2014 in Rio de Janeiro, Brazil. Rio's two nights of Carnival parades began 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 Mario Tama/Getty Images) ( 476630087 )

A performer from the Uniao da Ilha do Governador samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. Brazil's Carnival is maintaining its frenetic pace, with hundreds of roving parties taking over Rio de Janeiro's streets and famed samba school parades heading into their final night. (AP Photo/Silvia Izquierdo) ( Brazil Carnival )

Performers from the Unidos da Tijuca samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. (AP Photo/Silvia Izquierdo) ( Brazil Carnival )

Performers from the Portela samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Tuesday, March 4, 2014. (AP Photo/Nelson Antoine) ( Brazil Carnival )

RIO DE JANEIRO, BRAZIL - MARCH 03: Members of Unidos da Tijuca 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 began 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) ( 476600649 )

Performers from the Uniao da Ilha do Governador samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. Brazil's Carnival is maintaining its frenetic pace, with hundreds of roving parties taking over Rio de Janeiro's streets and famed samba school parades heading into their final night. (AP Photo/Silvia Izquierdo) ( Brazil Carnival )

Members of Imperatriz Leopoldinense Samba School perform 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) ( 476590537 )

A man collects recycled materials left by fans after carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, March 4, 2014. The ccostumes on display at the all-night Sambadrome parades often have a short shelf life. As the tens of thousands of revelers stream out of the Sambadrome, a surprising number of them immediately abandon their costumes, leaving them strewn on the ground amid a sea of empty beer cans, crushed water bottles and other ordinary trash. (AP Photo/Felipe Dana) ( Brazil Recycling Carnival )

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

Revelers wearing costumes impersonating Norway Olympic curling team play 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) ( Brazil Carnival )

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) ( Brazil Carnival )

People attend the 'Cordao da Bola Preta' traditional street carnival parade at Rio Branco avenue on March 01, 2014 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/Getty Images) ( 475798631 )

Dancers from the Academicos do Tucuruvi samba school perform during a carnival parade in Sao Paulo, Brazil, Saturday, March 1, 2014. (AP Photo/Andre Penner) ( Brazil Carnival )