Metallica is an American heavy metal band that formed in 1981 in Los Angeles, California. Founded when drummer Lars Ulrich posted an advertisement in a Los Angeles newspaper, Metallica's original line-up consisted of Ulrich, rhythm guitarist and vocalist James Hetfield, lead guitarist Dave Mustaine, and bassist Ron McGovney. These last two were later ejected from the band, in favor of Kirk Hammett and Cliff Burton, respectively. The ejection of Mustaine resulted in a feud between him and Metallica. In September 1986, Metallica's tour bus skidded out of control and flipped, which resulted in Burton being crushed under the bus and killed. Jason Newsted replaced him less than two months later. Newsted left the band in 2001 and was replaced by Robert Trujillo in 2003.
Metallica has released eight studio albums, two live albums, two EPs, twenty-two music videos, forty singles and has finished working on their upcoming ninth studio album, Death Magnetic. The band has become one of the most commercially successful and influential heavy metal acts. With over 100 million records sold worldwide, including 57 million in the United States, the band has won numerous Grammy Awards, and has had four albums peak at number one on the Billboard 200. The band's 1991 album Metallica, has sold over 15 million copies, which makes it the 25th highest selling album in the United States.