K-Paz de la Sierra was a Mexican-American band that performs Duranguense music. It was comprised of Armando Rodriguez, Carmelo Gamboa, Humberto Rafael Solis, Luis Vidales, Sergio Gomez, and Gerardo Ramirez. Some of their hits included "Mi Credo", "Volveré", "Con Olor A Hierba", "Pero Te Vas A Arrepentir", "Procuro Olvidarte", "Y Aquí Estoy", and many others. On May 28, 2007, five long-time members of the band surprised their fans by leaving the group and forming a new group, AK-7.

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