Question: Are both Tim McIlrath and Spike Slawson American punk rock musicians?

full_context: Document 1: Rise Against: Rise Against is an American melodic hardcore band from Chicago, Illinois, formed in 1999. The band's current line-up comprises vocalist/rhythm guitarist Tim McIlrath, lead guitarist Zach Blair, bassist Joe Principe and drummer Brandon Barnes. Former members are guitarists Dan Wlekinski, Kevin White, Todd Mohney and Chris Chasse, and drummer Toni Tintari.
Document 2: Anti-Flag: Anti-Flag are an American  pop punk  band from Pittsburgh, Pennsylvania, United States. The band is well known for politically charged lyrics and activism, focusing on anti-war activism, anti-imperialism, class struggle, human rights, and various sociopolitical sentiments. The line-up includes singer/guitarist Justin Sane and drummer Pat Thetic, who founded the band; later members are guitarist Chris Head, and singer/bassist Chris Barker (#2) who replaced Jamie "Cock" Towns, who had replaced original bassist Andy Flag in 1997 following his departure one year prior. Anti-Flag is known also for their advocacy of progressive political action groups such as Greenpeace and Amnesty International. Most recently, the band has declared solidarity with the global Occupy Together movement.
Document 3: Me First and the Gimme Gimmes: Me First and the Gimme Gimmes (often shortened to just "Me First" or "The Gimmes") are a punk rock supergroup and cover band that formed in San Francisco in 1995. The Gimmes work exclusively as a cover band. The band is named after a children's book of the same name by Gerald G. Jampolsky and Diane V. Cirincione.
Document 4: Tim Commerford: Timothy Robert Commerford (born February 26, 1968) is an American musician, best known as the bassist and backing vocalist for the American rap metal band Rage Against the Machine (1991–2000; 2007–2011), supergroups Audioslave (2001–2007) and Prophets of Rage (2016–present). Since 2013 and 2015, he has also been the lead singer and bassist of the bands Future User and WAKRAT, respectively.
Document 5: Uke-Hunt: Uke-Hunt is a ukulele-based cover band fronted by Spike Slawson from Me First and the Gimme Gimmes. Although both this and the Gimmes are cover bands, they have very different approaches. While the Gimmes generally pick non-rock songs and rock them out and speed them up to turn them into punk music, while in this band, the songs picked are generally upbeat songs that are then slowed down and mellowed out.
Document 6: Filthy Thieving Bastards: The Filthy Thieving Bastards is an American folk/punk rock group formed in 2000 in San Francisco, California. The band was originally a side project put together by Johnny Bonnel and Darius Koski of the Swingin' Utters. Spike Slawson (also from Swingin' Utters) later joined the band, along with recording engineer Randy Burk. Greg Lisher from Camper Van Beethoven guested on guitar for several songs on their second release. Their music is influenced by folk rock, Celtic rock, country music, 60's pop, and punk rock, with an acknowledged and oft-noted debt to the music of The Pogues.
Document 7: Tim McIlrath: Timothy James "Tim" McIlrath (born November 3, 1978) is an American punk rock musician. He is the lead singer, rhythm guitarist, songwriter and co-founder of the American punk rock band Rise Against. McIlrath is known to support animal rights and actively promotes PETA with his band. He is also straight edge.
Document 8: Dave Raun: Dave Raun (born June 7, 1970) a resident of Fresno, California, is the drummer for the seminal California punk rock band Lagwagon. He also filled in on drums for a short period for Sean "SC" Sellers of Good Riddance. Additionally, Raun drums for the punk rock cover band/supergroup Me First and the Gimme Gimmes, with fellow Lagwagon member Joey Cape. Me First and the Gimme Gimmes also features
Document 9: Tim Timebomb: Tim Timebomb is a music project by Tim Armstrong, best known as a member of the punk rock band Rancid. Armstrong has recorded a large number of songs – a mixture of cover versions, including Rancid covers, and original songs, including some tracks from his musical film project "RocknNRoll Theater" – with a variety of supporting musicians.
Document 10: Spike Slawson: Spike Slawson is an American punk rock musician, a member of Me First and the Gimme Gimmes, Swingin' Utters, Filthy Thievin' Bastards, Re-Volts, and Uke-Hunt.
Document 11: Tim Rutili: Tim Rutili (born Temistocles Hugo Rutili) is a singer, guitarist, and keyboardist, and frontman/lyricist for the American rock band Califone. Originally from Chicago, Rutili now lives in Los Angeles. He was raised in Addison, IL. After moving into Chicago in 1988, he found success with the band Red Red Meat. The band was signed to the Sub Pop label, where they received high praise and moderate success. He was also a member of the Indie rock supergroup Ugly Casanova, which included Modest Mouse singer Isaac Brock, producer and former Red Red Meat bandmate Brian Deck, and others. He also appears on Joan of Arc's album Guitar Duets, performing a duet with Jeremy Boyle.
Document 12: Tony Sly: Anthony James Sly (November 4, 1970 – July 31, 2012) was an American singer, songwriter and guitarist, best known as the front man of the punk rock band No Use for a Name. In his later years he also gained attention for his acoustic solo work, with two acoustic split albums he released with Lagwagon front man Joey Cape and two solo albums.
Document 13: Tim Armstrong: Timothy Ross “Tim” Armstrong (born on November 25, 1965) is an American musician, singer, songwriter, producer, and actor. He is best known as the singer/guitarist for the punk rock band Rancid and hip hop/punk rock supergroup the Transplants. Prior to forming Rancid, Armstrong was in the influential ska punk band Operation Ivy. In 1997, along with Brett Gurewitz of the band Bad Religion and owner of Epitaph Records, Armstrong founded Hellcat Records. In 2012, through his website, Armstrong started releasing music that influenced him, along with stripped-down cover songs of his own work under the name Tim Timebomb. He has released at least one song per week since late 2012. Armstrong is also a songwriter for other artists. Armstrong won a Grammy Award for his work with Jimmy Cliff and Pink and he has also worked with Joe Walsh.
Document 14: Fat Mike: Michael John Burkett (born January 31, 1967), also known as Fat Mike, is an American musician and producer. He is the bassist and lead vocalist for the punk rock band NOFX and the bassist for the punk rock supergroup cover band Me First and the Gimme Gimmes. He was also a temporary bassist for the band Against Me!
Document 15: Punk rock: Punk rock (or "punk") is a rock music genre that developed in the early to mid-1970s in the United States, United Kingdom, and Australia. Rooted in 1960s garage rock and other forms of what is now known as "proto-punk" music, punk rock bands rejected perceived excesses of mainstream 1970s rock. Punk bands typically produced short or fast-paced songs, with hard-edged melodies and singing styles, stripped-down instrumentation, and often political, anti-establishment lyrics. Punk embraces a DIY ethic; many bands self-produce recordings and distribute them through informal channels.
ground_truth: yes