Trio Montecarlo was a very successful musical group from Vale do Caí. National and international success, the "Trio" recorded dozens of albuns. The south of Brazil was the stronghold of their public, especially in the cities where the German language was predominant.
The three singers of the group: Mr. Arno Adalberto Bohn, Mr. Kurt Jorge Dutzig and Mr. Egon Arnoni Schaeffer were descendants from German immigrants from Montenegro and Porto Alegre. They could sing fluently in German language.