Rio's Spectacular Carnival Parade

A dancer from Mocidade samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (AP Photo/Felipe Dana) (AP2012)

A dancer of Beija Flor samba school parades on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade. (AP Photo/Felipe Dana) (AP2012)

Jennifer Lopez greets people as she watches carnival parades with Casper Smart, left, at the Sambadrome in Rio de Janeiro, Brazil, Sunday Feb. 19, 2012. (AP Photo/Victor R. Caivano) (AP2012)

A dancer from the Imperatriz Leopoldinense samba school parades on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (AP Photo/Felipe Dana) (AP2012)

Dancers of Mocidade samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (AP Photo/Felipe Dana) (AP2012)

The Black Eyed Peas singer Fergie talks to people as she watches carnival parades at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (AP Photo/Felipe Dana) (AP2012)

A dancer from the Mocidade samba school swings from a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (AP Photo/Felipe Dana) (AP2012)

Dancers of Vila Isabel samba school parade on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade. (AP Photo/Felipe Dana) (AP2012)

Performers from the Unidos da Vila Isabel samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb.20, 2012. Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade. (AP Photo/Victor R. Caivano) (AP2012)

Revelers dance during Beija Flor samba school parade at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 20, 2012. Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade. (AP Photo/Victor R. Caivano) (AP2012)

Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade. A performer from the Beija Flor samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 20, 2012. Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade. (AP Photo/Victor R. Caivano) (AP2012)

A dancer of Beija Flor samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (AP Photo/Felipe Dana) (AP2012)

A performer from the Beija Flor samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 20, 2012. Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade.(AP Photo/Silvia Izquierdo) (AP2012)

Performers from the Beija Flor samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb. 20, 2012. Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade. (AP Photo/Silvia Izquierdo) (AP2012)

Performers from the Mocidade Independente de Padre Miguel samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday, Feb.20, 2012. Millions watched the sequin-clad samba dancers at Rio de Janeiro's iconic Carnival parade. (AP Photo/Silvia Izquierdo) (AP2012)

A dancer from the Imperatriz Leopoldinense samba school parades on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (AP Photo/Felipe Dana) (AP2012)

The Renascer de Jacarepagua samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday, Feb. 19, 2012. (AP Photo/Victor R. Caivano) (AP2012)

Brazilian pop artist Romero Britto performs with the Renascer de Jacarepagua samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday, Feb. 19, 2012. (AP Photo/Victor R. Caivano) (AP2012)

Performers from the Renascer de Jacarepagua samba school parade during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Sunday Feb. 19, 2012. (AP Photo/Silvia Izquierdo) (AP2012)

The Imperatriz Leopoldinense samba school parades during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, Monday Feb. 20, 2012. (AP Photo/Felipe Dana) (AP2012)