What are those traditional mexican trios called?

Question

they are allways in movies singing with guitars and they are allways wearing sombreros and colourful outfits.

Answer 1

Tres Amigos

lol

Answer 2

Mariachi, or Jarochos if they play Veracruz style and are dressed in white shirt, trousers and hat.

Mariachi are not necessarily a trio: a full group is usually made by 8: 3 violins, two trumpets, a Mexican guitar, a guitarron and a vihuela

Answer 3

Probably the most well known trios in Latin America are the "trio los panchos". Two of them were Mexican and a third was Puerto Rican and their music is some of the most beautiful that you'll find in any language.

Answer 4

First answer has it right - Mariachi.  

Answer 5

3 amigos??