Question: What country were Mark Linkous and Mark Wystrach singers of?

full_context: Document 1: Chuck Wicks: Charles Elliott "Chuck" Wicks (born June 20, 1979) is an American country music artist and radio personality. He was one of the participants on the American reality series "Nashville", which aired on Fox for two episodes before its cancellation in mid-2007. In late 2007, he signed to RCA Records Nashville as a recording artist, with his debut single "Stealing Cinderella" being released in September of that year. It served as the lead-off to his debut album "Starting Now", which was released in January 2008. "All I Ever Wanted" and "Man of the House" were released as the album's second and third singles, respectively, and both have charted in the Top 40 as well.
Document 2: Ben Chasny: Ben Chasny is an indie rock and psychedelic folk guitarist. His primary projects are Six Organs of Admittance (his solo psych folk project) and Comets on Fire (a psychedelic rock band). He made his recording debut in 1996 with his heavy, free rock project Plague Lounge on "The Wicker Image", an LP released conjointly between the New World of Sound and Holy Mountain labels. Holy Mountain went on to become the "home" of many of his releases under the Six Organs Of Admittance moniker. He has also released an album with Hiroyuki Usui under the name August Born. Chasny has lent his talents to other projects such as Badgerlore, Double Leopards, Current 93 and Magik Markers both in live performance and studio albums. More recent musical projects of his include the avant-folk trio Rangda (along with guitarist Richard Bishop and drummer Chris Corsano) and the more melodic and conventional 200 Years with Magik Markers' Elisa Ambrogio.
Document 3: Mark McCain: Mark McCain is the son of rancher Lucas McCain in the ABC Western television series "The Rifleman," which ran from 1958 to 1963. Singer/actor and former Mousketeer Johnny Crawford was cast in the role, and was nominated for an Emmy Award in 1959 as Best Supporting Actor (Continuing Character) in a Dramatic Series. The award went to Dennis Weaver, then portraying Chester Goode on CBS's "Gunsmoke".
Document 4: Mark Wahlberg: Mark Robert Michael Wahlberg (born June 5, 1971) is an American actor, producer, businessman, former model, and former rapper. Wahlberg was known as Marky Mark in his early career as frontman for the group Marky Mark and the Funky Bunch, releasing the albums "Music for the People" and "You Gotta Believe". Wahlberg later transitioned to acting, appearing in films such as the drama "Boogie Nights" and the satirical war comedy-drama "Three Kings" during the 1990s. In the 2000s, he starred in the biographical disaster drama "The Perfect Storm", the science fiction film "Planet of the Apes", the heist film "The Italian Job", and the Martin Scorsese-directed neo-noir crime drama "The Departed", for which he received an Academy Award nomination for Best Supporting Actor. In the 2010s, he starred in the action comedy "The Other Guys" alongside Will Ferrell, the biographical sports drama "The Fighter" (for which he earned an Academy Award nomination as a producer for Best Picture), the comedy "Ted", the war film "Lone Survivor", the crime comedy "Pain & Gain", the science fiction action film "" and the sequel "", the comedy "Daddy's Home", the disaster film "Deepwater Horizon", and the thriller "Patriots Day".
Document 5: Tom Wopat: Thomas Steven Wopat (born September 9, 1951) is an American actor and singer. He first achieved fame as Lucas K. "Luke" Duke on the long-running television action/comedy series "The Dukes of Hazzard". Since then, Wopat has worked regularly, most often on the stage in musicals and in supporting television and movie roles. He was a semi-regular guest on the 1990s comedy series "Cybill", and had a small role as U.S. Marshal Gil Tatum in "Django Unchained" (2012). Wopat also has a recurring role as Sheriff Jim Wilkins on the television series "Longmire". Additionally, Wopat has recorded several albums of country songs and pop standards, scoring a series of moderately successful singles in the 1980s and 1990s.
Document 6: All My Friends (EP): All My Friends is an EP by House of Freaks released on CD (R2 70943) and 12" vinyl (R1 70943) in 1989 by Rhino Records. In 2004 these tracks were remastered and included on the reissue of the album Tantilla. Recording occurred at Floodzone Studios in Richmond, VA. The Album's cover is a collage of photos consisting of friends and acquaintances of band members Bryan Harvey and Johnny Hott. Included in the collage, above the EP's title is Sparklehorse founder Mark Linkous, who at times performed with House of Freaks.
Document 7: In the Fishtank 15: In the Fishtank 15 is a collaborative EP by Sparklehorse and Christian Fennesz. It is the fifteenth and most recent installment of the collaboration project by Konkurrent and the final release by Sparklehorse before the death of leader Mark Linkous in 2010. Fennesz had previously appeared on Sparklehorse's 2006 album "Dreamt for Light Years in the Belly of a Mountain", and, following a number of live shows together, both artists felt that there was further mileage in the collaboration. The EP was recorded in two days in December 2007 and released in September 2009.
Document 8: Mark Wystrach: Mark Wystrach (born December 17, 1979) is an American actor and country music singer.
Document 9: Sparklehorse: Sparklehorse was an American indie rock band, led by the singer and multi-instrumentalist Mark Linkous and active between the years 1995 to 2010. In 2010, Linkous committed suicide.
Document 10: George Strait: George Harvey Strait (born May 18, 1952) is an American country music singer, songwriter, actor, and music producer. He is known as the "King of Country" and is considered one of the most influential and popular recording artists of all time. He is known for his neotraditionalist country style, cowboy look, and being one of the first and main country artists to bring country music back to its roots and away from the pop country era in the 1980s.
Document 11: Dreamt for Light Years in the Belly of a Mountain: Dreamt for Light Years in the Belly of a Mountain is the fourth and final album by Sparklehorse before Mark Linkous' death in 2010. It was released on September 25, 2006 by Astralwerks Records.
Document 12: Midland (band): Midland is an American country music group consisting of Mark Wystrach (lead vocals), Cameron Duddy (bass guitar, background vocals), and Jess Carson (lead guitar, background vocals). Their debut single, "Drinkin' Problem", reached the top 5 on the "Billboard" Country Airplay chart. The album's second single, "Make a Little" released to country radio on September 25, 2017.
Document 13: Randy Travis: Randy Bruce Traywick (born May 4, 1959), better known by his stage name, Randy Travis, is an American country music singer, songwriter, guitarist, and actor. Since 1985, he has recorded 20 studio albums and charted more than 50 singles on the "Billboard" Hot Country Songs charts, and 16 of these were number-one hits. Considered a pivotal figure in the history of country music, Travis broke through in the mid-1980s with the release of his album "Storms of Life", which sold more than four million copies. The album established him as a major force in the Neotraditional country movement. Travis followed up his successful debut with a string of platinum and multi-platinum albums. He is known for his distinctive baritone vocals, delivered in a traditional style that has made him a country music star since the 1980s.
Document 14: Matt de Jong: Matt de Jong is a graphic designer and art director who specializes in album art and related promotional materials for musicians. He has designed album covers for artists including Cat Power, Clean Bandit, Deerhunter, Future Islands, Little Dragon, The Maccabees, Paolo Nutini, Lee Ranaldo, Ratking, and Vampire Weekend. de Jong is known for working with musicians who have a reputation for being "difficult" and nevertheless creating album art that pleases them. Lionel Skerratt, who co-founded Public Information Records, and Orlando Weeks, lead singer of The Maccabees, are childhood friends of de Jong's.
Document 15: Mark Linkous: Mark Linkous (September 9, 1962 – March 6, 2010) was an American singer, songwriter and musician, best known as leader of Sparklehorse. He was also known for his collaborations with such notable artists as Tom Waits, PJ Harvey, Daniel Johnston, Radiohead, Black Francis, Julian Casablancas, Nina Persson, David Lynch, Fennesz, Danger Mouse, and Sage Francis.
ground_truth: American singer