Frejat started his music profession in 1981 seeing that the guitarist from the rock band Clubão Vermelho. Having created songs with a variety of partners, such as for example Cazuza, Luís Melodia, Waly Salomão, Antônio Cícero, Arnaldo Antunes, Nando Reis, Chacal, and Gabriel O Pensador, he do his first work as a manufacturer in 1989 for the punk rock and roll group Inocentes. In 1994, he created the tribute Compact disc to Roberto Carlos, Rei, using the involvement of Chico Research & Nação Zumbi, Clubão Vermelho, Biquíni Cavadão, and Skank, amongst others. In 1995, he created the CD from the mangue defeat group Jorge Cabeleira e O Dia Em Que Seremos Inúteis. He also created albums for various other artists as well as for his very own group, Clubão Vermelho. In 2001, Frejat released his first single record, Amor Pra Recomeçar, which he left out his rock and roll & roll previous and only a more intimate approach.