This four-piece punk-rock, metalcore Mexican band has become huge in Latin America, with its eponymous certified platinum debut album Allison selling like hotcakes across North America and Europe. Ranging from hardcore metal tracks to alt-rock love ballads, their infectious energy, wild guitar and bass solos and screeching vocals have become their trademark sound. Despite several changes in the band's configuration and turbulence in its members' personal lives, Allison has performed to jam-packed audiences the world over.