St. Anger is the eighth studio album by American heavy metal band Metallica, released on June 5, 2003 by Elektra Records. It was the band's last album released through Elektra, thus marking the end of the longest timespan between studio albums from Metallica, with nearly six years between the release of Reload and this album. St. Anger was originally intended for release on June 10, 2003, but was released five days earlier due to concerns over unlicensed distribution through peer-to-peer file sharing networks. The album marks the final collaboration between Metallica and producer Bob Rock, whose relationship began with the band's fifth studio album, 1991's Metallica. The St. Anger sessions also mark the only time Rock actually played when the music was being recorded, filling in for the departed bassist Jason Newsted.

Newsted left the band prior to the initial sessions for the album, leaving Rock to temporarily take his place until a permanent replacement could be found. Recording of the album initially started on April 23, 2001, but was postponed indefinitely when rhythm guitarist and singer James Hetfield entered rehab for "alcoholism and other addictions". The artwork was created by Pushead, who had previously collaborated with the band.

Metallica spent the next couple of years touring to promote the album. St. Anger debuted at the top of sales charts in 30 countries, including the US Billboard 200. In 2004, the album's lead single, "St. Anger", won a Grammy Award for Best Metal Performance. The album was certified 2× platinum by the Recording Industry Association of America (RIAA) for shipping two million copies in the US. St. Anger has sold nearly six million copies worldwide. More: