The Doomstar Requiem – A Klok Opera Soundtrack is the fourth full-length album by death metal band Dethklok, from the Adult Swim animated series Metalocalypse.

The album features a 50 piece orchestra under the direction of Bear McCreary.

For the first time, Dethklok's live guitarist Mike Keneally was featured on a studio album.

[1] The first single off the album, "Blazing Star", was released on Loudwire on October 17, 2013.

[5][6] Times Leader gave the album (as well as the special itself) a favorable review, stating, "This 'rock opera' should essentially be approached with a keen sense of humor, although the tunes are most enjoyable as a serious, full-blown metal/Broadway juggernaut".