Metallica's 1991 album debuted at number one on the U.S. Billboard 200.
The achievement was a first for Metallica. The album sold 598,000 copies in its first week and became the band's first release to top the U.S. album chart. It remained at number one for four consecutive weeks, an unusually strong performance for a heavy-metal record during a period when mainstream pop and alternative music dominated much of the market.
The success was built on both the band's established reputation and the album's broader musical reach. Songs such as “Enter Sandman” and “Nothing Else Matters” brought new listeners while the record retained the weight and precision expected by longtime fans. Its polished production also made the album highly compatible with radio and music television.
The album's chart result should not be confused with Metallica's earlier peak for ...And Justice for All, which reached number six. The Black Album transformed Metallica from a major metal act into a worldwide mainstream rock phenomenon.