Revellers from the Vila Isabel samba school participate in the annual carnival parade in Rio de Janeiro’s Sambadrome, Sunday. REUTERS/Ricardo Moraes

A performer from the Salgueiro samba school during carnival celebrations at the Sambadrome in Rio de Janeiro, Monday. AP Photo/Leo Correa

Performers from the Mangueira samba school, during carnival celebrations at the Sambadrome in Rio de Janeiro, Sunday. AP Photo/Silvia Izquierdo

Revellers from the Grande Rio samba school in the annual carnival parade in Rio de Janeiro’s Sambadrome, Sunday. REUTERS/Ricardo Moraes

Performers from the Mocidade samba school during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday. AP Photo/Felipe Dana

Model Juliana Paesthe of Viradouro samba school in the annual carnival parade in Rio de Janeiro’s Sambadrome, Sunday. REUTERS/Ricardo Moraes

Tennis player Rafael Nadal of Spain during the Carnival parade in the Sambadrome in Rio de Janeiro, Sunday. AP Photo/Leo Correa

Revellers from the Grande Rio samba school in the annual carnival parade in Rio de Janeiro’s Sambadrome, Sunday. REUTERS/Ricardo Moraes

A reveller from the Mocidade samba school in Rio de Janeiro’s Sambadrome, Sunday. REUTERS/Sergio Moraes

Vila Isabel samba school’s drum queen Sabrina Sato in the annual carnival parade in Rio de Janeiro’s Sambadrome, Sunday. REUTERS/Pilar Olivares

A performer from the Mangueira samba school during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday. AP Photo/Felipe Dana

A reveller from the Viradouro samba school in Rio de Janeiro’s Sambadrome, Sunday. REUTERS/Pilar Olivares

A performer from the Mocidade samba school at the Sambadrome in Rio de Janeiro, Monday. AP Photo/Leo Correa

A performer from the Mangueira samba school at the Sambadrome in Rio de Janeiro, Monday. AP Photo/Leo Correa

Performers from the Mocidade samba school at the Sambadrome in Rio de Janeiro, Monday. AP Photo/Felipe Dana

Performers from the Salgueiro samba school during carnival celebrations at the Sambadrome in Rio de Janeiro, Monday. AP Photo/Felipe Dana