On May 1, 1991, the "Centro sociale Officina 99" was founded in Naples and became the incubator for the group 99 Posse that same year. The group's first singles "Rafaniello" and "Salario Garantito" was instrumental in bringing rap and raggamuffin to Italian musical scene. The following year, 99 Posse joined forces with Neapolitan bands Almamegretta and Bisca to record the single "Sott'attacco dell'idiozia." It was from this close and dynamic colloboration that the super group Bisca99Posse came into being.