Big Sir is a band that includes which bass guitarist, a Mexican-American musician, best known as the longtime bassist of Racer X and The Mars Volta?
Juan Alderete Juan Alderete de la Peña (born September 5, 1963) is a Mexican-American musician, best known as the longtime bassist of Racer X and The Mars Volta.
Mars (rapper) Mario Delgado (born April 18, 1980), better known by his stage name Mars, is a Mexican American rapper, entrepreneur, record producer, photographer, and actor from the San Francisco Bay Area city of Pittsburg, California that often performs with a Hannibal Lecter style mask. He specializes in horrorcore music.