Question: Huang Zitao is a former member of a boy group based in which city ?
Context: Christopher Thomas Woo (born November 25, 1991), known professionally as Kevin or Kevin Woo, is a American singer, actor and television host currently based in South Korea.  Born and raised in California, he was discovered by South Korean entertainment agency XING Entertainment at the age of fifteen and subsequently moved to South Korea.  After a few months training, Kevin debuted as a member of boy group XING in 2006 and withdrawal from the group two-years later.  In August 2008, he re-debuted as a member of boy group U-KISS.  In March 2017, he was official departure from U-Kiss after his contracts had expired with the agency. Huang Kun-huei (; born 8 November 1936) is a Taiwanese politician.  A former member of the Kuomintang, he had served as the party's secretary general from 1999 to 2000.  Prior to that, Huang served as the minister of the Mainland Affairs Council from 1991 to 1994 and Minister of the Interior from 1994 to 1996.  He later left the KMT and joined the Taiwan Solidarity Union, chairing the TSU from 2007 to 2016. Edge of Innocence (, literally "Summer, The Portrait of a 19 Year Old") is an upcoming Chinese mystery thriller film directed by Chang Jung-Chi and starring Huang Zitao and Yang Caiyu.  The film is based on the novel "Summer, The Portrait of a 19 Year Old", written by Japanese mystery writer Soji Shimada.  It revolves around Kang Qiao (Huang Zitao) witnessing what is possibly the process of Xia Yingying (Yang Caiyu) committing a crime, but yet is drawn to the beautiful girl.  After getting to know her better, Kang Qiao discovers that there are even more mysteries surrounding Xia Yingying and faces danger himself. Moxy is a Canadian hard rock and heavy metal band, formed in Toronto, Ontario, in 1974, from previous members of the rock group Leigh Ashford – which included singer Douglas "Buzz" Shearman (former teen singer of Sherman & Peabody), alongside Greg Godovitz of Fludd & Goddo, and Gil Moore (later of Triumph), Earl Johnson (former member of King Biscuit Boy), Bill Wade (former member of Outlaw Music and Brutus under the alias Hally Hunter that also included Gino Scarpelli of Goddo) and Terry Juric, (former member of Outlaw Music) as Leigh Ashford.  The group changed its name to Moxy in late 1974.  This name change was accompanied by a change in the group's sound.  Buddy Caine, a former bandmate of Earl Johnson, was added to the group in 1975. Cho Kyu-hyun (born February 3, 1988), better known mononymously as Kyuhyun, is a South Korean singer and musical theatre actor.  He is best known as a member of South Korean boy group Super Junior, its sub-groups Super Junior-K.R.Y., Super Junior-M and a former member of the South Korean ballad group S.M. the Ballad.  He is one of the first four Korean artists to appear on Chinese postage stamps. Got7, a hip hop boy group based in South Korea, have released three studio albums, six EPs, thirteen singles, and two box sets. Formed by JYP Entertainment in 2013, Got7 made their debut in January 2014 with the EP "Got It? ", which debuted at number two on the Gaon Albums Chart.  The EP's lead single "Girls Girls Girls" peaked at number 21 on the Gaon Singles Chart.  In October 2014, Got7 debuted in Japan with their first Japanese-language release "Around the World", peaking at number three on the Oricon's singles charts.  A month later, Got7 returned to Korea to release their first full-length album "Identify", and topped album charts. Huang Zitao (born 2 May 1993), better known as Tao, is a Chinese rapper, singer-songwriter and actor.  He is a former member of the South Korean-Chinese boy group EXO.  In 2015, he made his solo debut with the mini-album "T.A.O", under the new stage name Z.Tao. Cross Gene (Korean: 크로스진; stylized as CROSS GENE) is a five-member boy group based in South Korea.  Signed under Amuse Korea, the group consists of South Korean members: Shin, Sangmin, Yongseok and Seyoung and Japanese member Takuya.  They released their debut mini-album "Timeless: Begins" in 2012, which peaked at #8 on the Gaon weekly album chart. The Ultramagnetic MCs is an American hip hop group based in Bronx, New York.  Founded by Kool Keith, the group also includes Ced Gee, TR Love, and Moe Love.  Tim Dog became an unofficial member in 1989.  In 1990, DJ Jaycee was added as Roadmanager and backup DJ.  Big.D was put down with the crew by Kool Keith in 1989.  In 2006 Kool Keith and Big.D formed the supergroup The Commissioner, and in 1999 Big.D and D.J Moe-Love also formed the powerhouse group Slaughterhouse-Cartel.  A former member, Rooney Roon, was fired following an assault arrest.  Beat-boxing legend Rahzel was also involved with the group early in its career.  The group's work was associated with unorthodox sampling, polysyllabic rhymes, and bizarre lyrical imagery. Exo (Korean: 엑소 ; stylized as EXO) is a South Korean-Chinese boy group based in Seoul.  Formed by S.M. Entertainment in 2011, the group debuted in 2012 with twelve members separated into two subgroups, Exo-K (Suho, Baekhyun, Chanyeol, D.O., Kai, and Sehun) and Exo-M (Xiumin, Lay, Chen and former members Kris, Luhan and Tao ), performing music in Korean and Mandarin respectively.  Exo's first album "XOXO" (2013), which contained the breakthrough hit "Growl", was a critical and commercial success, winning both Disk Daesang at the 28th Golden Disk Awards and Album of the Year at the 15th Mnet Asian Music Awards.  It sold over one million copies, making Exo the best-selling Korean artist in twelve years.  Subsequent albums and EPs continued with strong sales, and Exo were ranked the most influential celebrity by "Forbes" Korea Power Celebrity for the years 2014 and 2015.  They have been named "the biggest boyband in the world" by media outlets.
Answer: Seoul