Voice of Tranquility is a Filipino rock and metal band formed in 2003 from Taguig City, Philippines and was founded by Valentine, along with Rny Jane Demano. The band played alongside international artists, Anthrax, Hellyeah, Death Angel, Nervecell (UAE), Kreator, Hatebreed, Bullet For My Valentine, Asking Alexandria, Crossfaith (Japan), The Black Dahlia Murder, Goddamn (Norway), Metal Heads with Broken Hearts (Norway), Asian Core (Japan), Desecrator (Australia), Argies (Argentina), Arah Kiri (Malaysia), Harmong Drive (Norway), Deathtopia (Japan).