Question: Which singer is from South Korea, Anette Olzon or Park Gyu-ri?
Context: Anette Ingegerd Olsson (born 21 June 1971), known by the stage name Anette Olzon, is a Swedish singer, best known as the lead vocalist of Finnish symphonic metal band Nightwish from 2007 to 2012.  She is also the former vocalist of Swedish classic rock band Alyson Avenue. Chung Dong-hoon (born 1932) also spelled Chung Dong-hun, is a former amateur boxer from South Korea.  A native of Jeollanam-do, he graduated from Chosun University in Gwangju.  He competed in the lightweight division at South Korea's April 1955 domestic Olympic national delegation qualifying tournament, and was victorious over Park Young-mu (朴英茂).  The following year, he went to Melbourne, Australia to represent South Korea at the 1956 Summer Olympics in boxing, where he lost to Ján Zachara of Czechoslovakia.  He went on to compete for South Korea in boxing at the 1958 Asian Games in Tokyo, Japan, where he captured the gold medal in the boxing lightweight division of the games after defeating Shinichiro Suzuki from Japan in the final. "Lies" is the debut solo single of Swedish singer Anette Olzon from her 2014 debut album "Shine".  It was officially released on 14 February 2014. The Third Republic of South Korea was the government of South Korea from 1963 to 1972.  It was presented as a return to civilian rule after a period of rule by the military junta known as the Supreme Council for National Reconstruction which in 1961 had overthrown the Second Republic of South Korea.  However, throughout this period the presidency was held by Park Chung-hee, who is the father of Park Geun-hye (who was president of South Korea between February 2013 and March 2017), who had also been an influential member of the junta.  He left his military post in order to run as a civilian in the presidential election. Nam Gyu-ri (; born on April 26, 1985 in Seoul, South Korea) is a South Korean singer and actress.  She was a former member and leader of the Korean female trio, SeeYa.  In 2009, Nam Gyu-ri had a contract dispute with the group's management company and left the group.  Nam has also acted, most notably in the film "Death Bell" and the drama "49 Days".  In 2012, she was ranked at #58 on "The 23rd Annual Independent Critics List of the 100 Most Beautiful Faces". "Eva " is the first single of Finnish symphonic metal band Nightwish's sixth studio album "Dark Passion Play".  It was the first release to feature the band's new singer, Anette Olzon, following Tarja Turunen's departure in 2005. Shine is the debut solo album by Swedish singer Anette Olzon, released on 26 March (Sweden), 28 March (Germany, Finland, Russia, Spain), 31 March (France, the Netherlands, Belgium, Luxembourg, Poland, Czech Republic, Norway, Denmark, the UK), 1 April (Italy), and 8 April 2014 (USA) by earMUSIC. Park Gyu-ri (born May 21, 1988), better known by the mononym Gyuri, is a South Korean singer, actress, and radio personality.  She was a member of South Korean girl group Kara. Dark Passion Play is the sixth studio album by Finnish symphonic power metal quintet Nightwish, released on September 26, 2007 in Finland, September 28 in Europe and October 2, 2007 in the United States.  It was the first Nightwish album with the band's new lead singer, Anette Olzon, and the first album not featuring former vocalist Tarja Turunen, who was dismissed in October 2005.  Lead songwriter Tuomas Holopainen has referred to it as the 'album that saved his life'. Crimson Skies is a 2006 studio album by the Swedish metal band Cloudscape.  It is the band's second studio album.  On June 9, 2006 Cloudscape performed at the Sweden Rock Festival to promote "Crimson Skies" followed by other appearances at clubs and festivals around in Europe.  A performance of the song "Demon Tears" was filmed and released as music video to promote the album.  On the song "Will We Remain", singer Anette Olzon appeared as guest on vocals.
Answer: Park Gyu-ri