In this photo taken Tuesday, Feb. 5, 2013, samba dancer Diana Prado, right, rehearses at the Sao Clemente samba school headquarters in Rio de Janeiro, Brazil. Prado spends her daylight hours working as a supervisor at a call center. At night, she is a samba dancer, or "passista," as they're known in Portuguese. "I get up, run to dance class, come to work, go to rehearsal and fall into bed," said Prado," In the run-up to Carnival, it's pretty chaotic. I don't sleep much at all from September through now."