Metallica

Metallica is an American heavy metal band from Los Angeles, California, formed in 1981.
The band was founded when James Hetfield responded to an advertisement that drummer Lars Ulrich had posted in a local newspaper. The current line-up features long-time lead guitarist Kirk Hammett (who joined the band in 1983) and bassist Robert Trujillo (a member since 2003) alongside Hetfield and Ulrich. Notable previous members of the band include former lead guitarist Dave Mustaine (who later went on to found the band Megadeth) and former bassists Ron McGovney, Cliff Burton and Jason Newsted. The band also had a long collaboration with producer Bob Rock, who produced all of the bands albums between 1990 and 2003 and served as a temporary bassist between the departure of Newsted and the hiring of Trujillo.
Metallica's early releases included fast tempos, instrumentals, and aggressive musicianship that placed them as one of the "big four" of the thrash metal subgenre alongside Slayer, Megadeth, and Anthrax, during the genre's development into a popular style. The band earned a growing fan base in the underground music community and critical acclaim, with the 1986 release Master of Puppets described as one of the most influential and "heavy" thrash metal albums. The band achieved substantial commercial success with their eponymous fifth album (also known as The Black Album), which debuted at number one on the Billboard 200. With this release the band expanded its musical direction resulting in an album that appealed to a more mainstream audience.