Formed in 1981 Opinia Publica came from Lisbon, Portugal, the band was constituted of Carlos Estreia (vocal and guitar), Peter Lima(guitar), Fialho Luis (keyboards) and Carlos Baltazar (drums).

In 1981 they concur for the Festival Alone Rock, carried through in the city of Coimbra, where they get one of the first places. The Festival was profit for the band Alarm of the Nazaré commanded for Carlos Gentleman.