St. Anger is the eighth studio album by American heavy metal band Metallica, released on June 5, 2003. It was the last Metallica album released through Elektra Records and the final collaboration between Metallica and longtime producer Bob Rock, with whom the band had worked since 1990. This is also Metallica's only album as an official trio, as bassist Jason Newsted left the band prior to the recording sessions; the band accepted an offer from Rock to play bass on the album in Newsted's place.