Bob Rock produced Metallica’s 1991 self-titled album, widely known as The Black Album.
Metallica chose Rock after admiring his work on Mötley Crüe’s 1989 album Dr. Feelgood. The band wanted a different approach after making its earlier records with a more separated, individually assembled recording process.
Rock encouraged the members to record more collaboratively and pushed for a stronger live feel. The sessions became famously demanding: the band’s perfectionism led to numerous takes, while disagreements over arrangements, performances, and lyrics created tension in the studio.
The album’s credits can cause confusion because Metallica and James Hetfield are also credited with production or assistant production roles. Other names had different jobs: Randy Staub engineered the sessions, George Marino mastered the original release, and Michael Kamen arranged the orchestra on “Nothing Else Matters.” Rock’s production helped shape the album’s polished, heavy sound and its move toward slower, more accessible songs.