Riot police have taken to the streets of several cities in Mexico to ... defend emo kids?

A series of attacks on dyed-hair, eye-makeup-wearing emo kids began in early March when several hundred people went on an emo-beating rampage in Querétaro, a town of 1.5 million about 160 miles north of Mexico City.

Music-based subcultures have permeated Mexico's major cities for decades, fueled by constant migration from rural cities. But only in the past year have emos begun to make their presence felt in the streets. In response, many of the established so-called tribus urbanas like punks and metalheads are responding with violence. The emo-punk battles are reminiscent of earlier subculture fights among various factions, like the Hell's Angels fighting hippies at the Altamont Music Festival or the Mods taking on the Rockers.