Chicago-based duranguense stars Aliados de la Sierra hit the regional Mexican music world with lightning strike-like success. In the same year as its formation, the band released its debut disc, which quickly became one of the top-selling regional Mexican music releases of the year. Group members Sergio Federico (vocals), Eduardo Navar (keyboard), Jose Luis Muro (vocals), Roberto Tello (saxophone, guitar, and keyboard), Pedro Celis (saxophone), Juan Alfredo Rosas (tambora), and Adan Cervantes (drums and percussion) were all seasoned musicians when they came together in January...