Brazil carnival

Dancers of Sao Clemente samba school parade on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (Felipe Dana / Associated Press)

Dancers of Sao Clemente samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (Felipe Dana / Associated Press)

Dancers of Sao Clemente samba school parade on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (Felipe Dana / Associated Press)

A dancer of Sao Clemente samba school parades on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (Felipe Dana / Associated Press)

Dancers of Sao Clemente samba school parade on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (Felipe Dana / Associated Press)

Dancers of Sao Clemente samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (Felipe Dana / Associated Press)

A performer from the Sao Clemente samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 20, 2012. (Victor Caivano / Associated Press)

Performers from the Sao Clemente samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 20, 2012. (Silvia Izquierdo / Associated Press)

Revelers cheer at the Beatles-themed street party, “Sargento Pimenta,” Portuguese for “Sergeant Pepper,” at the Aterro do Flamengo urban park in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. The group that organizes the party gives the Beatles repertoire a Brazilian tweak, adapting “All My Loving” to the peppy beat of a traditional Carnival “marchinha,” or march, and infusing “Hard Day’s Night” with a Rio funk sound. (Dado Galdieri / Associated Press)

A couple kiss in a crowd reveling in the Beatles-themed street party, “Sargento Pimenta,” Portuguese for “Sergeant Pepper,” in the streets of Aterro do Flamengo in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. The group that organizes the party gives the Beatles repertoire a Brazilian tweak, adapting “All My Loving” to the peppy beat of a traditional Carnival “marchinha,” or march, and infusing “Hard Day’s Night” with a Rio funk sound. (Dado Galdieri / Associated Press)