Formed around 1990 in California, the street-style group Proper Dos consists of artists like rapper and lyricist Frank Villareal, producer Ernie Gonzalez, mastering Big Bass Brian, and Stuart Wylen on bass, guitar, conga, and keyboards. Proper Dos has also had help on some recordings by special guests, including Big Shady, Lil Rob, Point Blank, Royal T, Knightowl, and others.

In 1992, the group finished their potent debut album, Mexican Power, under the Rhino Records label. One Summer Night, Life of a Gangster, No Turning Back, and Hard Time are a few of the hip-hop/Latin rap mixed numbers on the debut.

Proper Dos recorded a number of singles, and then finally, three years later, came a second album, rightly named We're at It Again, released by Skanless Records. Another three years went by before the album Heat hit the store shelves, followed a year later by Overdose. The album Overdose carries numbers like Shake the Ground, We Run This Mutha, and Can You Rock Like This. Many of the tunes have explicit lyrics.

In 2000, Proper Dos saw the release of another album, Brown Pride Riders, Vol. 2, which the group completed with Lil Rob and Knightowl. ~ Charlotte Dillon, Rovi