Balada in English?

BALADA
[PARTY ; BALLAD (lit.)]

• Ele tem uma visão bem cosmopolita e circula por todas as baladas legais.
• He has a really cosmopolitan outlook and goes round all the cool parties.

Balada is a ‘ballad’, a popular love song or a 'party' with song and dance’, but nowadays this word is very commonly used to denote any kind of partying, especially amongst young people, who just love to sair pra balada.

Referência: “Break the Branch? Quebrar o Galho – Common, Everyday Words and Phrases in Brazilian Portuguese” de Jack Scholes, Disal Editora, 2008.

FONTE: http://www.teclasap.com.br/blog/