Kill 'Em All is the debut studio album by American heavy metal band Metallica, released on July 25, 1983, by independent record label Megaforce Records. Since its release, it has been certified 3× platinum by the RIAA, having sold over three million copies in the United States.
Black Sabbath is the eponymous debut studio album by English rock band Black Sabbath. Released on 13 February 1970 in the United Kingdom and on 1 June 1970 in the United States, the album reached number eight on the UK Albums Chart and number 23 on the Billboard charts.
Although it was poorly received by most contemporary music critics, Black Sabbath has since been credited with significantly influencing the development of heavy metal music.