Metallica is an American thrash metal band from California. Formed in Los Angeles in 1981, the group is currently composed of two of its founding members, James Hetfield (vocals, rhythm guitar) and Lars Ulrich (drums), as well as guitarist Kirk Hammett (arrived in 1983) and bassist Robert Trujillo , who will join the band in 2003. Previous members of the group include Dave Mustaine (after his exclusion, founding member of Megadeth), bassists Ron McGovney (only for demos), Cliff Burton (for the first three albums, deceased in 1986) ) and Jason Newsted (taking over from Burton and replaced in 2003 by Trujillo). The group has long collaborated with producer Bob Rock, who produced all their albums from 1990 to 2003 and became temporarily bassist of the group, between the departure of Newsted and the arrival of Trujillo. The group formed in the early 1980s when Hetfield went to an ad posted in a local newspaper by drummer Lars Ulrich.
Metallica is renowned for his instrumental, fast and nervous music, which places him as one of the "Big Four of Thrash" (one of the four biggest bands of thrash metal) with Slayer, Megadeth and Anthrax. The group has earned a reputation among music fans >>. Metallica has also been rated as one of the best music groups in a number of specialty magazines, including Rolling Stone, which ranks it # 61 in its Top 100 Best Groups of All Time>. In December 2012, Metallica was the fourth most profitable band since the start of music sales during the Soundscan era, which began on May 25, 1991, with more than 53 million albums sold in the United States alone.