Metallica's 1991 album, also known as The Black Album, topped the Billboard 200 for four consecutive weeks.
The result followed its number-one debut and made the album Metallica's first to reach the top of that chart. Sustaining the position for a month demonstrated that its success was not limited to a strong opening week; continuing sales and broad radio exposure kept it at the summit.
The album's commercial momentum was supported by several singles, including “Enter Sandman,” “The Unforgiven,” “Nothing Else Matters,” “Wherever I May Roam,” and “Sad but True.” Together, those releases helped the record remain visible to both metal audiences and mainstream listeners.
The phrase “four consecutive weeks” is important because it describes an uninterrupted run at number one, not four total weeks accumulated at different times. Chart rankings can vary by country, so this figure specifically refers to the U.S. Billboard 200.