The Viper began in 1985 with the demo The Killera Sword, formed by André Matos (Vocals), Pit Passarell (Bass), Yves Passarel (Guitar), Felipe Machado (Guitar) and Cássio Audi (Drums). Soon came Soldiers of Sunrise in 1987. At that time the drummer was the musician Cássio Audi.
In 1989 they released the album Theater of Fate, with the tecladista Junior Andrade. However, due to musical differences with the rest of the band and very busy with his music college, André Matos leaves the Viper to focus on his musical studies [2], and Pit Passarel takes the lead. The group released another album, Evolution, recorded by new drummer Renato Graccia, who had already toured the Theater of Fate tour. He came on tour in Japan and a subsequent live album (Maniacs in Japan). They then release Coma Rage and Have Everyone, but the latter barely hits stores due to the bankruptcy of the band’s new label at the time, Castle. With this unexpected, the band stopped, returning years later.
In 2005, the band returned with Ricardo Bocci on vocals, Val Santos on guitar and Guilherme Martin (who had previously played in the band) on drums. The band released in August 2005 the DVD Living For the Night – 20 Years of Viper, containing images and videos of the band’s entire career.
Also in 2005 the band released a demo with new songs. Guilherme Martin left the group in 2005 and joined the band Luxúria. Renato Graccia (who also played in the band) returned to the Viper instead. Today, Yves Passarel plays in the Initial Capital.
In 2007, the band released the album All My Life. They started the tour the same year, and due to personal projects, in 2009 they declared a pause. Felipe Machado is dedicating himself in his profession as a journalist, Pit Passarell is with a solo band, Renato Graccia with a band mix of Blues and Rock, Marcelo Mello is giving guitar lessons and Ricardo Bocci began his tour of the single “My Way "Giving a show on July 24 at the Centro Cultural São Paulo (CCSP) and on the 10th (together with Rafael Bittencourt) and September 11 (along with Sphaera Rock Orchestra) at CCSP.