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.
Billy Sheehan William "Billy" Sheehan (born March 19, 1953), is an American bassist known for his work with Talas, Steve Vai, David Lee Roth, Mr. Big, Niacin, and The Winery Dogs. Sheehan has won the "Best Rock Bass Player" readers' poll from "Guitar Player" magazine five times for his "lead bass" playing style. Sheehan's repertoire includes the use of chording, two-handed tapping, right-hand "three-finger picking" technique and controlled feedback.