Valhalla began its career in 1989. After having registered two demo tapes in 1995, they then released their debut LP later that same year ...In The Darkness Of Limb, but adversities made Valhalla quit for a period.
The act restarted in 1999 with three new members: Michelle (bass), Caroline (vocals) and Marcelo (drums) and the two original members, the guitar sisters Alessandra and Adriana. This Valhalla line up, recorded a single in June of 2001 called ... For Might Of Chaos ... For The Force Inside, with 4 tracks. Marcelo then left the band, and in his place session musician drummer Rodrigo was recruited to assist in the release of Petrean Self (2002) on the Hellion Records' label. Kahyo would then join the band as the next permanent drummer.