COB = speed/power metal with harsh vocals,There is some contention regarding the band's genre classification, but in general the band's musical style can be described as a cross between melodic death metal and power metal. Children of Bodom's genre classification is debated amongst fans and critics. The band could be part of several musical genres, among them power metal, thrash metal, neo-classical metal, speed metal, and melodic death metal. The term "Tuonela Metal", recently introduced by Finnish press, albeit rare should be taken into some consideration, due to its expressiveness (i.e., its reference to the Ade, the Reign of Shadows) and to its implicit tribute to Jean Sibelius, the most representative Finnish composer. Laiho, however, says that he prefers to just be called a metal group and nothing other.