Death Magnetic is the ninth studio album by American heavy metal band Metallica, released on September 12, 2008, through Warner Bros. Records. The album was produced by Rick Rubin, marking the band's first album since ...And Justice for All (1988) not to be produced by longtime collaborator Bob Rock and co-produced by Hetfield and Ulrich. It is also the first Metallica album with bassist Robert Trujillo, and the second to share writing credit to all of the band's members.

Robert Jens Rock is a Canadian record producer, sound engineer and musician, best known for producing rock bands and music artists such as Metallica, Mötley Crüe, Bon Jovi, Aerosmith, the Tragically Hip, the Cult, 311, Our Lady Peace, Bryan Adams, the Offspring, Michael Bublé, Black Veil Brides, David Lee Roth, and Ron Sexsmith.