The sound of samba is in the air,all eyes are on the glittering costumes and colorful floats of Carnival troupes as they parade through the Sambadrome.
Rio de Janiero's Sambadrome is filled with some seventy-thousand people - including actor Will Smith - all here to take in the vibrant parade.
Kicking things off is the Inocentes de Belford Roxo samba school. As they shake their way into the stadium, the dancers can't contain their excitement.
Each samba school has an hour and twenty minutes to parade the 500-foot long Sambadrome.
This party goes well into the night - and it won't stop here. Millions of people are expected to take part in hundreds of street parties across the city in the days to come.