is a Mexican ska, rock and punk band from Tijuana, Baja California, Mexico.

They were characterized by the social criticism in their lyrics, where they also showed their support to the EZLN, and made reference in their songs to racial, cultural, international, and governmental problems, like the immigration policies in the United States.

In its early stages they had the participation of Mexican singer Julieta Venegas, who left the band and started a solo career.

Luis Güereña, one of the three singers the group died in 2004 due to a heart attack while he was watching television at his home in Tijuana.

The group officially disbanded in December 2002, although they occasionally met to pay tribute to their companion Luis Güereña.