or 21:00 (depending on the date) and end around 5:00 in the morning. The Rio de Janeiro Metro operates 24 hours during the main parade days. Music Samba Originated in Rio de Janeiro between the end of the 19th century and the first years of the 20th century, the samba is still one of the most popular music styles of Brazil. From intimate samba-canções (samba songs) sung in bars to explosive drum parades performed during carnival, samba always evokes a warm and vibrant mood. In the 1930s, a group of musicians led by Ismael Silva founded in the neighborhood of Estácio de Sá the first samba school, Deixa Falar. They transformed the musical genre to make it fit better the carnival parade. In this decade, the radio spread the genre's popularity all around the country, and with the support of the nationalist dictatorship of Getúlio Vargas, samba became Brazil's "official music." In the following years, samba has developed in several directions, from the gentle samba-canção to the drum orchestras which make the soundtrack of carnival parade. One of these new styles was bossa nova, a musical movement initially spearheaded by young musicians and college students from Rio de Janeiro. It got increasingly popular over time, with the works of João Gilberto and Antonio Carlos Jobim. In the sixties, Brazil was politically divided, and the leftist musicians of bossa nova started to draw attention to the music made in the favelas. Many popular artists were discovered at this time. Names like Cartola, Nelson Cavaquinho, Velha Guarda da Portela, Zé Keti, and Clementina de Jesus recorded their first albums. In the seventies, the samba got back to radio. Composers and singers like Martinho da Vila, Clara Nunes, and Beth Carvalho dominated the hit parade. In the beginning of the eighties, after having been sent to the underground due to styles like disco and Brazilian rock, Samba reappeared in the media with a musical movement created in the suburbs of Rio de Janeiro. It was the pagode, a renewed samba, with new instruments, like the banjo and the tantan, and a new language, more popular, filled with slang. The most popular names were Zeca Pagodinho, Almir Guineto, Grupo Fundo de Quintal, Jorge Aragão, and Jovelina Pérola Negra. Various samba schools have been founded throughout Brazil. A samba school combines the dancing and party fun of a night club with the gathering place of