Question: In which county is the city where Northtown's singer was born?

full_context: Document 1: Northtown (EP): Northtown is the debut EP by American singer-songwriter Shamir Bailey, better known by his stage name, Shamir. The EP has elements of R&B, house and dance music. It was produced by Nick Sylvester, the founder of New York's Godmode label, and released on June 6, 2014. The EP was rated as one of the best releases by a new artist in 2014.
Document 2: Sam Shaber: Sam Shaber is an American singer/songwriter from New York City. Her parents were screenwriter David Shaber and artist Alice Shaber, and many of her songs, such as "Walkin' at Night," "Eldorado," and "Bomb Threat in New Rochelle," refer to New York City. Her song "All of This", also about New York City, reached #1 on the Quiznos Subs National In-Store Playlists in 2003.
Document 3: Slimmy: In 2007, Slimmy returned to Portugal, embarking on an extensive national tour in preparation for the release of his debut album “Beatsound Loverboy”, on the Som Livre label. The album features a fusion of rock and electro music, releasing three singles, “Beatsound Loverboy”, “Show Girl” and “You Should Never Leave Me”. The music video for “Show Girl” gained controversy for its revealing lesbian content. “Beatsound Loverboy” and “You Should Never Leave Me” appeared on the “Morangos com Açúcar” soundtrack and the album was voted the 3rd best national album of the past 15 years, chosen by the listeners of the national radio station Antena 3. The year 2008 began with a new tour, with Slimmy presenting the full album throughout the country. The album garnered much recognition within the media and earned Slimmy a nomination for “Golden Globe Newcomer of the Year” as well as a nomination in the “MTV Europe Music Awards” for “Best Portuguese Act”. Slimmy edited in digital format the “Slimmy Unplugged”, his only live album to date, with 13 songs, recorded live at Salon Castelense in June of that year.
Document 4: House music: In the late 1980s, Nu Groove Records prolonged, if not launched the careers of Rheji Burrell & Rhano Burrell, collectively known as Burrell (after a brief stay on Virgin America via Timmy Regisford and Frank Mendez), along with basically every relevant DJ and Producer in the NY underground scene. The Burrell's are responsible for the "New York Underground" sound and are the undisputed champions of this style of house. Their 30+ releases on this label alone seems to support that fact. In today's market Nu Groove Record releases like the Burrells' enjoy a cult-like following and mint vinyl can fetch $100 U.S. or more in the open market.
Document 5: Las Vegas Strip: The Las Vegas Strip is a stretch of South Las Vegas Boulevard in Clark County, Nevada that is known for its concentration of resort hotels and casinos. The Strip is approximately 4.2 miles (6.8 km) in length, located immediately south of the Las Vegas city limits in the unincorporated towns of Paradise and Winchester. However, the Strip is often referred to as being in Las Vegas.
Document 6: Nighty Night (EP): Nighty Night is an album by 8in8, a supergroup featuring Ben Folds, Amanda Palmer, Neil Gaiman, and Damian Kulash of OK Go. It was released in April 2011
Document 7: The Baudelaire Label: Founded in 2004 by Evan Newman, who had left his post as Head of A&R/Media Relations at V2 Records Canada, The Baudelaire Label was named Best Toronto Record Label in Now Magazine in 2006. In 2007, The Baudelaire Label merged with Outside Music and Newman went to head both the Outside Music Label as well as Outside Music Management which represents Jill Barber, Sunparlour Players, The Hylozoists, and Matthew Barber.
Document 8: Shamir (musician): Shamir Bailey (born November 7, 1994), known mononymously as Shamir, is an American singer, songwriter and actor from Las Vegas, Nevada. His debut extended play (EP), "Northtown", was released in June 2014 to positive reviews. In October 2014 he signed to XL Recordings and released the single "On the Regular". His debut LP "Ratchet" was released on May 19, 2015 in the United States.
Document 9: Michael Shulman (writer): Michael Shulman (born April 28, 1973) is an American writer, artist, and pop culture expert, residing in Las Vegas, Nevada.
Document 10: If It Wasn't True: "If It Wasn't True" is a song written and recorded by American singer-songwriter Shamir Bailey, better known by his stage name Shamir, and included as the opening track on his debut extended play (EP) "Northtown". Musically, "If It Wasn't True" is an R&B, pop, and dance song. Shamir has called the track "a breakup song, but not a typical one," and "Vogue" magazine in 2014 dubbed it "Your New Favorite Breakup Song."
Document 11: Nirvana (EP): Nirvana is the debut extended play (EP) by English singer Sam Smith. It was released in the United Kingdom as a digital download on 4 October 2013. The EP includes an acoustic version of Disclosure's "Latch". "Safe with Me" peaked at number 86 and "Nirvana" peaked at number 82 on the UK Singles Chart in October 2013.
Document 12: Las Vegas, New Mexico: Las Vegas is a city in and the county seat of San Miguel County, New Mexico, United States. Once two separate municipalities (one a city and the other a town), both were named Las Vegas—West Las Vegas ("Old Town") and East Las Vegas ("New Town")—are separated by the Gallinas River and retain distinct characters and separate, rival school districts.
Document 13: Gallup, New Mexico: Gallup (Navajo: Naʼnízhoozhí) is a city in McKinley County, New Mexico, United States, with a population of 21,678 as of the 2010 census. A substantial percentage of its population is Native American, with residents from the Navajo, Hopi, and Zuni tribes. Gallup is the county seat of McKinley County and the most populous city between Flagstaff and Albuquerque, along the historic U.S. Route 66.
Document 14: Las Vegas: Las Vegas (/ lɑːs ˈveɪɡəs /, Spanish for ``The Meadows ''), officially the City of Las Vegas and often known simply as Vegas, is the 28th-most populated city in the United States, the most populated city in the state of Nevada, and the county seat of Clark County. The city anchors the Las Vegas Valley metropolitan area and is the largest city within the greater Mojave Desert. Las Vegas is an internationally renowned major resort city, known primarily for its gambling, shopping, fine dining, entertainment, and nightlife. The Las Vegas Valley as a whole serves as the leading financial, commercial, and cultural center for Nevada.
Document 15: Riverside, Grant County, New Mexico: Riverside is an unincorporated community in Grant County, New Mexico, United States. It lies on the left (east) bank of the Gila River and on both sides of U.S. Route 180 in southwestern New Mexico, by road south of Cliff, New Mexico.
ground_truth: San Miguel County
sub_queries: Northtown >> performer Answer: Shamir
Shamir >> place of birth Answer: Las Vegas
Las Vegas >> located in the administrative territorial entity Answer: San Miguel County