Who is the male baritone singer in Tribalistas?

Ive noticed his voice in a few Tribalistas tracks. (like Carnalismo), he sounds a bit like Arnaldo Antunes in O Seu Olhar...

lol i just came in here to post Arnaldo Antunes – Lua vermelha, because again, i matched that voice i heard in Tribalistas, i was trying to figure out this mystery

thanks fabricioooo :)

... looking for a album called 'Focus'(or 'O essencial de Arnaldo Antunes'). You can find that album by several artists including Arnaldo Antunes. It's a collection. You can also find him with Titãs, a band he was member until 1992, but there are other vocalists. He has that strong voice, but in many songs he not sings that baritone. His individual work is very philosophical and plays with the possibilities with words inside Portugues language. For more, the discography:
Nome (1993)
Ninguém (1995)
O Silêncio (1996)
Um Som (1998)
O Corpo (2000)
Paradeiro (2001)
Saiba (2004)
Qualquer (2006)
Ao Vivo No Estúdio (2007)