Calibre 50 from Mazatlan, Sinaloa are a charting, award-winning quartet founded in 2010 by Eden Muñoz (vocals, accordion), Armando Ramos (guitars, vocals), Martín López (tuba), and Augusto (drums). Their provocative name (after an armor-piercing bullet) was chosen as a symbol for their music, which they claim can penetrate across geographical lines from Mexico and the United States to Latin America. After playing gigs wherever they could — from backyard parties to small restaurants — they made a video of their song “The Infiernito,” which brought them to the attention of Disa and landed them a recording contract.
They made their full-length album debut with Renovar O Morir in 2010. The album included the singles “Callejero y Mujeriego,” “Culiacán vs. Mazatlán” (a duet with Gerardo Ortiz), and “El Tierno Se Fue.” As Calibre 50 began to receive airplay and gain attention on YouTube, it set the stage for their 2011 breakout album De Sinaloa Para el Mundo, which included the hit singles “El Tierno Se Fue,” and “Te Estoy Engañando con Otra.”