Photo Gallery: Rio Carnival revelers twist, shout to Beatles 10/13

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) ORG XMIT: XSI172