Thereās more than one band named Hostility: 1)American band that destroys with their unrelenting blend of spastic hardcore and heavier-than-your-mom groove metal. The band consists of Greg Haran (vocals), Vorrises (guitar), Brandon Sigmund (bass), and Andrew Holzbaur (drums). Their style of music could best be described as taking the pure metal elements of bands like Pantera, Machine Head and Slipknot and infusing them with some of the controlled chaos of bands like Premonitions of War and Ion Dissonance. Read more on Last.fm