Question: Which singer is from South Korea, Seo Min-woo or John Mayer?

full_context: Document 1: Nam Woo-hyun: Nam Woo-hyun (Hangul: 남우현 ; Hanja: 南優賢 ; born February 8, 1991), commonly known by his mononym Woohyun, is a South Korean singer and actor with the boy band Infinite. In 2016 he released a solo album.
Document 2: Seo Min-woo: Seo Min-woo (Hangul: 서민우; born February 8, 1985) is a South Korean idol singer and actor. He is a member of South Korean boy group 100% under the label of TOP Media, as the leader and vocalist.
Document 3: Jack Johnson (musician): Jack Hody Johnson (born May 18, 1975) is a singer-songwriter, musician, actor, record producer, documentary filmmaker and a former professional surfer from the United States. Johnson is known primarily for his work in the soft rock and acoustic genres. In 2001, he achieved commercial success after the release of his debut album, "Brushfire Fairytales". Johnson has reached number one on the "Billboard" 200 chart with his albums "Sing-A-Longs and Lullabies for the Film Curious George" in 2006, "Sleep Through the Static" in 2008, "To the Sea" in 2010, and "From Here to Now to You" in 2013. Johnson's "In Between Dreams" album peaked at number 2 on the chart in 2005 and again in 2013.
Document 4: Born and Raised World Tour: The Born and Raised World Tour was a concert tour by American singer John Mayer in support of his fifth and sixth studio albums, "Born and Raised" and "Paradise Valley". On March 22, 2013, the tour was first announced and tickets went on sale March 29 and 30, 2013. The tour began on July 6, 2013 in Milwaukee and ended in June 2014. This was Mayer's first tour in three years and after undergoing his vocal surgery.
Document 5: Jason Mraz: Jason Thomas Mraz ( ; born June 23, 1977) is an American singer-songwriter who first came to prominence in the San Diego coffee shop scene in 2000. In 2002, he released his debut studio album, "Waiting for My Rocket to Come", which contained the hit single "The Remedy (I Won't Worry)". With the release of his second album, "Mr. A-Z", in 2005, Mraz achieved major commercial success. The album peaked at number 5 on the "Billboard" 200 and sold over 100,000 copies in the US. In 2008, Mraz released his third studio album, "We Sing. We Dance. We Steal Things." It debuted at number 3 on the "Billboard" 200 and was an international commercial success primarily due to the hit "I'm Yours". The song peaked at number 6 on the "Billboard" Hot 100, giving him his first top ten single, and spent a then-record 76 weeks on the Hot 100. His fourth album, "Love Is a Four Letter Word", peaked at number 2 on the "Billboard" 200, his highest-charting album to date.
Document 6: Lee Min-woo: Lee Min-woo (hangul: 이민우; born 28 July 1979), also known mononymously credited as M as a solo artist, is a South Korean entertainer, known as a member of the South Korean boy band Shinhwa. Lee was the first Shinhwa member to debut as a solo artist in 2003, and has since released three studio albums.
Document 7: Suho: Kim Jun-myeon (born (1991--) 22, 1991 ), better known by his stage name Suho (meaning "guardian" in Korean), is a South Korean singer and actor. He is a member and leader of the South Korean-Chinese boy group EXO and its sub-unit EXO-K.
Document 8: Lee Min-woo discography: Lee Min-woo, under the name "M", has been a solo singer since 2003, and a member of Korean boyband Shinhwa since 1998. His solo material covers 4 studio albums, 3 EPs, one live album, and one single.
Document 9: Bleu (musician): William James McAuley III (born July 18, 1975), best known by his performing name, Bleu, is an American pop artist (singer-songwriter), professional songwriter and producer currently living in Los Angeles. Bleu graduated from the Berklee College of Music in Boston, Massachusetts. Along with his solo work, he is the lead singer and songwriter of the Electric Light Orchestra-style power pop band L.E.O., as well as a founding member of the power pop trio The Major Labels with Mike Viola and Ducky Carlisle, and is also a founding member of the Mutt Lange homage super-group LoudLion (featuring Taylor Locke of Rooney, Allison Robertson of The Donnas, Maclaine Diemer formerly of Bang Camaro, etc.). Bleu has toured the United States and internationally with bands such as John Mayer, Puffy AmiYumi, Hanson, Guster, Rooney, Mike Viola, Switchfoot, Alexz Johnson, and Toad the Wet Sprocket.
Document 10: John Mayer discography: The discography of American singer-songwriter and guitarist John Mayer consists of seven studio albums, seven live albums, three compilation albums, two video albums, four extended plays, twenty-four singles and seventeen music videos. Born in Bridgeport, Connecticut, Mayer moved to Atlanta, Georgia and began playing in local clubs in 1998. He released the extended play "Inside Wants Out" in September of the following year. "Inside Wants Out", as well as continued performances, brought Mayer to the attention of independent record label Aware Records. Aware later signed Mayer and released his full-length debut studio album, "Room for Squares", in June 2001. When Columbia Records acquired Aware, the album was re-released in September and promoted as a major label release. Following its re-release, "Room for Squares" peaked at number eight on the United States "Billboard" 200. The album has since sold over four million copies in the United States, and was certified four times platinum by the Recording Industry Association of America (RIAA). Three singles were released from "Room for Squares", two of which became top 40 hits on the US "Billboard" Hot 100: "No Such Thing" and "Your Body Is a Wonderland". "Heavier Things", Mayer's second studio album, was released in September 2003. It topped the "Billboard" 200 and attained a double platinum certification from the RIAA. "Heavier Things" produced three singles: "Bigger Than My Body", "Clarity" and "Daughters". "Daughters" later won the award for Song of the Year at the 47th Grammy Awards.
Document 11: ₩uNo: Woo Ji-seok (Korean: 우지석 ; born May 11, 1990), commonly known as Taewoon or ₩uNo is a South Korean singer, rapper, songwriter, and record producer. He is a former member of the South Korean boy band Speed and former member of the South Korean Coed group Coed School.
Document 12: Jonathan Clay (musician): Singer-songwriter Jonathan Clay grew up in Magnolia, Texas. He released his first EP "Whole New Me" in 2006 on iTunes. Atlantic Records signed Clay to a development deal in 2007. In June 2007 Clay released his second album "Back to Good". MTV music supervisors found his work on MySpace. ABC Family used Clay's "After All" in "Lincoln Heights" in 2008. Levi's and True Anthem sponsored Clay's give away of 140,000 downloads of "Acoustic Sessions" in 2008. In 2010 Clay recorded "Everything She Wants" with producer Kevin Kadish. "Gypsy Woman", a cut from that album, was used in the U.S. television series "Sons of Anarchy" in 2011. In late 2010 Clay formed a new band called Jamestown Revival. The duo teamed Clay with his childhood friend Zach Chance and within six months of forming the band the duo were featured in "Rolling Stone" magazine for the Cover of the Rolling Stone contest. "Heart on Fire", a song featuring Clay's vocals, was featured in the 2012 comedy "LOL" starring Miley Cyrus, Demi Moore, Ashley Greene, Adam Sevani, and Douglas Booth. Clay sang three additional songs for the film.
Document 13: Lee Sung-min (singer): Lee Sung-min (born January 1, 1986) is a South Korean singer and actor. He is a member of the South Korean boy band Super Junior and its sub-groups Super Junior-T, Super Junior-H and Super Junior-M.
Document 14: Why Georgia: "Why Georgia" is the third single released by John Mayer from his first album, "Room for Squares". As a B-side, the international version single featured the live version of "Why Georgia" as it appeared on Mayer's first live album, "Any Given Thursday," as the single followed the live album's release. The international single was released only two months prior to Mayer's second album, "Heavier Things".
Document 15: John Mayer: John Clayton Mayer ( ; born October 16, 1977) is an American singer-songwriter, guitarist, and producer. He was born in Bridgeport, Connecticut, and raised in nearby Fairfield. He attended Berklee College of Music in Boston, but disenrolled and moved to Atlanta in 1997 with Clay Cook. Together, they formed a short-lived two-man band called Lo-Fi Masters. After their split, Mayer continued to play local clubs—refining his skills and gaining a following. After his appearance at the 2001 South by Southwest Festival, he was signed to Aware Records, and then Columbia Records, which released his first EP, "Inside Wants Out". His following two full-length albums—"Room for Squares" (2001) and "Heavier Things" (2003)—did well commercially, achieving multi-platinum status. In 2003, he won the Grammy Award for Best Male Pop Vocal Performance for the single "Your Body Is a Wonderland".
ground_truth: Seo Min-woo