FILE - This April 7, 2004 file photo shows members of the band Los Lobos, from left, Louie Perez, Cesar Rosas, Conrad Lozano, David Hidalgo holding a guitar, and Steve Berlin posing for a photograph, in Los Angeles. They are the progenitors of Chicano rock 'n' roll, the first band that had the boldness, and some might say the naiveté, to fuse punk rock with Mexican folk tunes. (AP Photo/Damian Dovarganes, file)
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