I didn't find out about this till today. But this seems to be a traditinal June festival in Brazil.
From the link below about how it works in Brazil
" you will eat Brazilian sweets and drink Quentão, a warm drink made with pinga or Vinho Quente, a warm spicy wine."
Also in Brazil there are typical foods such as Maria Mole, Rapadura, Pamonha, Pé de Moleque, Paçoca, Sweet and Salty popcorn, Cotton Candy (Algodão Doce), Churrasco, Cural de Milho, Milho Verde, Canjica, Doce de Abobora, Doce de Amendoim, Cocada, and many others.
Now I don't know how much will be at this fest but they do promise food, drink, live music and a lot of fun.
It cotst $10 to get in and the only other info I have is the address:
968 23rd St at Lincoln St
Hours are 5 pm till midnight