A performer from the Beija Flor samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Silvia Izquierdo)
A performer from the Beija Flor samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
A performer from the Uniao da Ilha samba school dances on a float during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
Performers from the Beija Flor samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
A performer from the Vila Isabel samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
A performer from the Academicos do Grande Rio samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
Performers from the Mocidade samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
A performer from the Academicos do Grande Rio samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Mauro Pimentel)
Performers from the Unidos da Tijuca samba school parade on a float during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Mauro Pimentel)
A performer from the Salgueiro samba school reacts to the camera as he parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
Performers from the samba school parade on a float during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday, Feb. 26, 2017. (AP Photo/Mauro Pimentel)
A performer from the Vila Isabel samba school reacts to the camera as he parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
Performers from the Mocidade samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
Performers from the Mangueira samba school parade on a float at the end of the Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
Dancers from the Salgueiro samba school perform during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Mauro Pimentel)
A performer from the Beija Flor samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Mauro Pimentel)
Performers from the Uniao da Ilha samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Silvia Izquierdo)
A performer from the Imperatriz Leopoldinense samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
Performers from the Vila Isabel samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
A performer from the Portela samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Leo Correa)
SITA/AP
A performer from the Sao Clemente samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Leo Correa)
A performer from the Imperatriz Leopoldinense samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
A man greets a performer from the Mangueira samba school during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
Performers from the Vila Isabel samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
A performer from the Beija Flor samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Mauro Pimentel)
A performer from the Mocidade samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
A performer from the Uniao da Ilha samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Silvia Izquierdo)
Performers from the Portela samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Mauro Pimentel)
A performer from the Uniao da Ilha samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Silvia Izquierdo)
Performers from the Unidos da Tijuca samba school, impersonating U.S. artist Beyonce, parade during Carnival celebrations at the Sambadrome in Rio de Janeiro in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Mauro Pimentel)
A performer from the Paraiso do Tuiuti samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday, Feb. 26, 2017. Competitors work for months to ready for Brazil's world famous Carnival parades of samba dancing, costumes and magnificent floats. (AP Photo/Silvia Izquierdo)
A performer from the Vila Isabel samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
Performers from the Mocidade samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
Performers from the Unidos da Tijuca samba school parade on a float during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Leo Correa)
A performer from the Vila Isabel samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Leo Correa)
Performers from the Mangueira samba school parade on a float during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
A performer from the Sao Clemente samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Mauro Pimentel)
A performer from the Uniao da Ilha samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Silvia Izquierdo)
A performer from the Uniao da Ilha samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Silvia Izquierdo)
A performer from the Unidos da Tijuca samba school, impersonating U.S. singer Beyonce, parades during Carnival celebrations at the Sambadrome in Rio de Janeiro in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Mauro Pimentel)
SITA/AP
A performer from the Unidos da Tijuca samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Leo Correa)
Performers from the Mangueira samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
Fans of the Mangueira samba school cheer during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. (AP Photo/Silvia Izquierdo)
Performers from the Portela samba school parade during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday Feb. 28, 2017. (AP Photo/Mauro Pimentel)
A performer from the Salgueiro samba school dances during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Mauro Pimentel)
An ambulance parks in front the a float as people are rescued after an accident during the performing of the Unidos da Tijuca samba school for the Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Tuesday, Feb. 28, 2017. Part of the float has collapsed during Rio de Janeiro's world famous Carnival parade, injuring more than a dozen of people, according to doctors at the scene. (AP Photo/Leo Correa)
A performer from the Beija Flor samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 27, 2017. (AP Photo/Silvia Izquierdo)