They started under the name Throne of Chaos, but shortened their name to TOC after "Pervertigo." Material on their first album was pretty much in the vein of Children of Bodom, but on "Pervertigo" they changed their style quite radically into some kind of thrash/power metal hybrid. On Loss Angeles, the music was progressive power metal with hints of jazz and thrash. Taneli Kiljunen originally performed all vocals before damaging his throat and being unable to sing for an extended period. Because of this, "Pervertigo" was performed with the help of two session vocalists.