Premise: Metallica is an American heavy metal band based in San Rafael , California . Metallica earned a growing fan base in the underground music community and won critical acclaim with its first four albums ; their third album Master of Puppets ( 1986 ) was described as one of the most influential and heaviest of thrash metal albums . Some Kind of Monster is a 2004 American documentary film featuring the American heavy metal band Metallica . Thrash metal is an extreme subgenre of heavy metal music characterized by its fast tempo and overall aggression .
Hypothesis: Metallica plays heavy metal music.
Label: ENTAILMENT