Lil Rob (born Roberto Flores in September 1975) is a Chicano rapper from San Diego, California.

Lil Rob debuted as an artist in 1992, prior to the release of his album Twelve Eighteen Part 1, he regularly moved as many as 100,000 units for each independent CD he recorded. The number Twelve Eighteen, which is also tattooed on Lil Rob's arms, represent the numeric value of the letters L and R, respectively, which are Lil Rob's initials. The number was used by Lil Rob during his days as a graffiti tagger.

In 1994 at the age of 18, Lil Rob's chin was shattered when he was shot in the jaw. Over time Lil Rob renounced his gang affiliations and called for "Brown Pride" and unity between all Chicanos.

Lil Rob has found commercial success with the release of Twelve Eighteen Part 1, which had been in regular rotation on radio stations outside of the West Coast thanks to the singles "Summer Nights", and "Bring Out The Freak In You".

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