Question: The Dwarves Must Die features a cameo by an American multi-instrumentalist, singer and songwriter best known as a member of what band?

Context articles: All Pigs Must Die (band)
The Dwarves Must Die
Daniel Rossen
Charles Moothart
Walter Martin (musician)
Matt Sharp
Nick Oliveri
Justin Vernon
John Dwyer (musician)
Brett Nelson

All Pigs Must Die is an American hardcore punk supergroup consisting of Kevin Baker of The Hope Conspiracy, Ben Koller of Converge, and Adam Wentworth and Matt Woods of Bloodhorse, the former of which is also a member of Acid Tiger.
 All Pigs Must Die is signed to Nonbeliever Records, an imprint label of Shirts & Destroy.
 Their debut EP, which was recorded at Kurt Ballou's GodCity Studio, was released in October 2010.
 The cover artwork was designed by German illustrator Florian Bertmer.
 In December 2010 the band began recording for their second release, again with Kurt Ballou at GodCity Studio.
The Dwarves Must Die is the 2004 release by the American punk band Dwarves.
 It is the band's first release on the "Sympathy for the Record Industry" label.
 There are several cameos, including Dexter Holland from The Offspring, Nash Kato from Urge Overkill, desert rock icon Nick Oliveri, Josh Freese from The Vandals, Spike Slawson from Me First and the Gimme Gimmes, gangster rapper San Quinn, DJ Marz, and even the original Space Ghost himself, Gary Owens.
 The rather freeform departure from the standard thrash/punk/noise sound is obvious in this release, slightly more so than in previous Dwarves productions, perhaps because they have been producing music for almost 20 years; however the original sound of the Dwarves shows clearly in several tracks.
Daniel Raphael Rossen (born August 5, 1982) is an American multi-instrumentalist, singer and songwriter.
 He is best known as the guitarist and co-lead vocalist of the indie rock band Grizzly Bear, with whom he has recorded four studio albums.
 Rossen is also a member of Department of Eagles, and released a solo EP, "Silent Hour/Golden Mile", in 2012.
Charles Frances Moothart is an American multi-instrumentalist, singer and songwriter.
 He is best known for his collaborations with the garage rock musicians, Ty Segall and Mikal Cronin.
 Moothart is the drummer for Segall's current backing band, The Freedom Band, was the guitarist for Segall's backing band, the Ty Segall Band, and is the guitarist and vocalist in the pair's hard rock project, Fuzz.
 Additionally, he is a member of Segall's collaborative project with Ex-Cult's Chris Shaw, GØGGS.
Walter Martin is an American multi-instrumentalist, singer and songwriter.
 He is best known as a member of the indie rock band The Walkmen, with whom he has recorded seven studio albums.
 Prior to joining the Walkmen, Martin was the keyboardist and organ-player for Jonathan Fire*Eater.
Matthew Kelly "Matt" Sharp (born September 22, 1969) is an American multi-instrumentalist, singer, songwriter and producer, and is best known as a founding member and former bassist of the alternative rock band Weezer.
 In 1994, Sharp started a band named The Rentals, who released their debut album shortly after Weezer's first release, followed by their 2nd album in 1999, and an EP in 2007.
 In addition, Sharp has released one full-length album and one EP as a solo artist.
Nick Steven Oliveri (born October 21, 1971) is an American multi-instrumentalist, singer and songwriter from Palm Desert, California.
 Oliveri is perhaps best known as a member of Queens of the Stone Age from 1998 to 2004.
 Oliveri is also a solo artist and frequent contributor to his friends' albums and tours, including Winnebago Deal, Mark Lanegan Band, Masters of Reality, Turbonegro and Moistboyz, among many others.
 Oliveri is currently the frontman of his project, Mondo Generator, a punk and metal hybrid that he formed in 1997.
Justin DeYarmond Edison Vernon (born April 30, 1981) is an American multi-instrumentalist, singer, songwriter and producer.
 He is best known as the primary songwriter and frontman of indie folk band Bon Iver.
 Vernon is also a member of the bands Volcano Choir, The Shouting Matches and Gayngs, and was a member of the now-defunct band DeYarmond Edison.
John Dwyer (born October 3, 1974) is an American multi-instrumentalist, vocalist, songwriter, visual artist and record label owner.
 He is best known as the founding member and primary songwriter of the garage rock band Thee Oh Sees, with whom he has recorded nineteen studio albums.
 In addition to his work with Thee Oh Sees, Dwyer records solo material under the name "Damaged Bug", and is a former member of the garage rock acts, Coachwhips, Pink and Brown and The Hospitals.
Brett Nelson (born 1969) is an American multi-instrumentalist, singer and songwriter best known as the former bassist for the indie rock band Built to Spill.