Spanish metal band Baron Rojo was formed in 1981 by sibling singers/guitarists Armando and Carlos De Castro in tandem with bassist José Luis Campuzano and drummer Hermes Calabria. Signing to the Chapa label, the group issued its debut album Larga Vida al Rock, releasing a new album annually prior to disbanding in 1988. Four years later, the De Castro brothers reformed Baron Rojo with new bassist Ángel Arias and drummer José Martos, releasing Desafio on Avispa; Arma Secreta followed on Clave five years later.