Premise: Metallica is an American heavy metal band based in San Rafael , California . The band 's fast tempos , instrumentals , and aggressive musicianship placed them as one of the founding `` big four '' bands of thrash metal , alongside Megadeth , Anthrax and Slayer . 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 . The band expanded its musical direction and achieved substantial commercial success with its eponymous fifth album Metallica ( 1991 ) , which resulted in an album that appealed to a more mainstream audience . In 2012 , Metallica formed the independent record label Blackened Recordings and took full ownership of its albums and videos .
Hypothesis: Metallica is an American fish.
Label: CONTRADICTION