Calibre 50 are a regional Mexican quartet comprised of Eden Muñoz (vocals, accordion), Armando Ramos (guitar, vocals), Martín López (tuba), and Augusto (drums). They made their full-length album debut with Renovar o Morir on Disa Records in 2010. The album includes the singles "Callejero y Mujeriego," "Culiacán vs. Mazatlán," and "El Tierno Se Fue." ~ Jason Birchmeier, Rovi