Kyuhyun was born in Nowon District, Seoul, a northeastern part of the city. His father, Cho Young-hwan, worked for the Korean Housing Corporation before opening various educational institutes in Korea. Kyuhyun's mother, Kim Hanna, pursued business ventures such as establishing an art academy, as well as a guesthouse (MOM House) located in Myeongdong. Kyuhyun also has an older sister, Ara, a violinist who studied abroad in Vienna, Austria, before returning to Korea to teach the violin.[3]
Kyuhyun was initially urged to study law by his parents and later said that it would have been his choice in career had he not become a singer. His original plans to go into law were abandoned once he joined a band in high school, where he realized his talents in singing. He went on to place third in the Chin Chin Singing Competition in 2005 and enteredSM Entertainment the following year.[4] He faced strong opposition from his father, but then later agreed to grant his blessings if Kyuhyun was accepted into a prestigious university. Kyuhyun subsequently enrolled inKyunghee University with a major in Post-Modern Music and received hisbachelor's degree in 2013. In 2016, he completed hismaster's degree in Post-Modern Music at the same university with master's dissertation entitled, "A Study on the Current Status and Future Development of K-POP: K-POP Advancement Strategies to America and Europe based on the Success Stories of K-POP in Japan and China".[5]
Kyuhyun officially made his debut in 2006 as a new member of Super Junior (formerly Super Junior 05, the first generation of SM Entertainment's 12-member rotational boy band).[6]
Kyuhyun made his first appearance as a part-time model of Super Junior in a news broadcast on May 23, where the group introduced their new single,U. He debuted a few days later on May 27 atSBS'sI-Concert with "U", which was also the group's first comeback performance as a permanent group. The CD single "U" was released on June 7 and remained the group's most successful single until the release of "Sorry, Sorry" in 2009.[7]
Shortly after his debut, Kyuhyun along with membersYesung andRyeowook formed Super Junior's first sub-group,Super Junior-K.R.Y. The trio debuted on November 5 onKBS's weekly music programMusic Bank.[8] Kyuhyun subsequently released a solo track titled "Smile" for ThetvN dramaHyena.
In 2008, Kyuhyun joined Super Junior Chinese sub-groupSuper Junior-M. The group debuted in China at the 8th Annual Music Chart Awards with the release of their first music video, "U" on April 8. The debut was followed by the release of the group's studio album,Me, in selected provinces throughout China and Taiwan.[9] Kyuhyun also collaborated withThe Grace in early 2008 to perform "Just For One Day" (하루만) for The Grace's first albumHanbeon Deo, OK?. Later that year, Kyuhyun, alongside member Ryeowook, featured in the song "Wish" (소원) in labelmateTVXQ's repackaged edition ofMirotic.
In 2009, Kyuhyun sang the remake of Yoo Young-suk's "7 Years of Love" (7년간의 사랑) for Yoo's 20th-anniversary tribute album. Kyuhyun first performed the song on the television programYou Hee-yeol's Sketchbook. On June 30, the song was released as a digital single as well as on Yoo's tribute album, with all proceeds donated toUNICEF. Following the success of his solo track, Kyuhyun alongside bandmateDonghae and actressHan Ji-min appeared in the music video "Happy Bubble," a commercial theme song for facial wash product Happy Bath on August 20.
2010–2013: Original soundtrack, S.M. The Ballad, Musical roles and Television roles
On January 6, 2010, Kyuhyun released his solo track "Listen To You" for the Korean dramaPasta. The song peaked at number one on real-time music portal charts. On August 5, Kyuhyun released his third solo song "Hope, a dream that never sleeps" (희망은 잠들지 않는 꿈) for the television dramaBaker King, Kim Tak Goo.
In November, Kyuhyun along with label matesTRAX'sJay,SHINee'sJonghyun, and newly debuted singerJino (now a member ofPentagon) formed the project groupSM The Ballad. The group was described as SM Entertainment's vocal unit group, but the original members would only promote that winter together.[10] The group released their debut album,Miss You on November 29 and debuted on the music programInkigayo the day before. The group remained inactive until 2014, when Kyuhyun along with TRAX's Jay and Jino left S.M.The Ballad, leaving Jonghyun as the only original member in the group.
From December 15, 2010, to mid-January 2011, Kyuhyun rotated asD'Artagnan with TRAX's Jay inThe Three Musketeers at Chungmu Art Hall in Seoul, where the singers co-starred with Yoo Jun-sang, Im Ki-jun, Kim Mu-yul andDana Hong.[11] His performances as D'Artagnan placed him first in an online poll for the Musical Rising Star Award at the 2010 Golden Ticket Awards.[12]
In 2011, Kyuhyun contributed to group mateSiwon's dramaPoseidon with the track "The Way to Break Up." The single was composed by Yoon Jong-shin and was also included in Yoon's monthly project album. Kyuhyun sang "Late Autumn" for Yoon's November monthly project later that year. He also appeared on KBS's music competition programImmortal Songs 2, replacing group mate Yesung on the show. Kyuhyun went on to win two rounds.
Kyuhyun was one of four fixed MCs on Super Junior's showForesight, and in September he replaced fellow memberHeechul as an MC onMBC'sRadio Star.[13] He later appeared onWe Got Married as part ofFighting Junior, supporting fellow memberLeeteuk and his on-screen wife actressKang So-ra.
From December 2012 to February 2013, Kyuhyun was again cast as Frank Abagnale Jr. for the re-run ofCatch Me If You Can. From March 2013 to April 2013, he was cast as D'Artagnan for the re-run ofThe Three Musketeers.
In May 2013, it was announced that Kyuhyun would replace labelmate SHINee'sMinho as the new MC of KBS 2TV'sMamma Mia.[15] Later in June, Kyuhyun featured in labelmateHenry's debut solo song "Trap" alongside SHINee'sTaemin.[16]
In August, Kyuhyun graduated fromKyunghee University's postmodern music department with abachelor's degree. He enrolled for his master's the following month. News sources reported the graduations of Kyuhyun and classmateKim Yeon-ji as unusual examples of entertainment stars taking their academic work seriously, to which Kyuhyun remarked, "I worked hard to get into university, so I was very attached."[17]
2014–2015: Solo debut with At Gwanghwamun andFall, Once Again
In May, it was announced that Kyuhyun would star in the musicalSingin' In The Rain as Don Lockwood, oppositeGirls' Generation'sSunny. The musical was produced by SM C&C, a subsidiary ofS.M. Entertainment, and ran from June 5 to 22 at Chungmu Art Hall in Seoul.[19][20]
Later that month, Kyuhyun was cast in his fifth musical,The Days. He played the second lead character, Moo-yeong, a witty and free-spirited security guard at the Blue House. Kyuhyun rotated the character alongside actors Kim Seung-dae, Oh Jeong-hyuk, andJi Chang-wook. The musical ran from October 21, 2014, to January 2015.[21]
On November 13, 2014, Kyuhyun released his debut album, titledAt Gwanghwamun, making him the first Super Junior member to debut alone.[22] Kyuhyun made his first music show appearance on KBS2'sMusic Bank on November 14.[23] Just 12 hours after the album's online release, the title track, "At Gwanghwamun", achieved an 'all-kill' by topping all nine digital Korean charts. All of the songs on his album eventually climbed to the top 10 on most music sites.[24][25]
In December, it was announced that Kyuhyun would star as Prince Phillip for the musicalRobin Hood. He rotated the role withBeast'sYoseob and actor Park Sung-hwan. The musical opened in January 2015 at the D-Cube Arts Center in Seoul.[26][27]
In early 2015, Kyuhyun was cast in news-basedKBS reality showFluttering India (두근두근 인도) alongside TVXQ'sChangmin, Shinee's Minho,CNBLUE'sJonghyun,Infinite'sSungkyu andExo'sSuho.[28][29] Filming took place inMumbai throughout February and the first episode was released on April 10, 2015.[30]
On March 25, it was announced that singer-songwriterLee Moon-se chose Kyuhyun to be his duet partner in his new album,New Direction. The duo's duet track, "She is Coming" was released on April 7.[31]
On October 14, 2015, Kyuhyun's second EP,Fall, Once Again with the title track "A Million Pieces, was released."[32][33]
In November 2015, Kyuhyun held his first solo concertAnd it's Fall Again, as part of SM Entertainment's concert seriesThe Agit at the SMTOWN Theatre in SMTOWN's Coex Artium. Kyuhyun held six concerts, and tickets sold out in 46 seconds.[34] Later that month, he released his next single, "The Day We Felt The Distance".
From November 2015 to January 2016, Kyuhyun played the lead role in the 15th-anniversary production of the musicalWerther. He rotated the role with actorsUm Ki-joon andCho Seung-woo.[35] Kyuhyun also participated in the OST album of the musical.[36]
2016–2017: Japan promotions,Waiting, Still and military enlistment
From April 11 to June 5, 2016, Kyuhyun held his solo tour in Japan, titledSuper Junior Kyuhyun Japan Tour 2016 ~Knick Knack~. He performed in several cities, including Fukuoka, Sapporo, Osaka, Hiroshima, Yokohama, Nagoya, and Tokyo.[37] Following his tour, Kyuhyun also released his debut Japanese single titled "Celebration ~Bridge to You~", on May 25.[38]
On August 22, SM Entertainment announced that Kyuhyun would take a break from his activities due to vocal cord nodules. He underwent surgeries and temporarily halted his activities, including his performance in an ongoing musical that he was cast in,Mozart, as well as two weeks of recording onRadio Star.[39]
In October 2016, it was announced that popular singerSung Si-kyung would be a participating composer in Kyuhyun's upcoming album, which was scheduled to release within the year.[40] Kyuhyun performed the new track at his concertReminiscence of a novelist on October 29 to 30 at Ehwa Womans University and Busan from November 5 to 6 at Bexco Auditorium.[41] His third EP,Waiting, Still, was released on November 10. The album includes the double title tracks, "Blah Blah" was produced by popular singer-songwriterYoon Jong-shin and "Still" was produced by popular ballad singerSung Si-kyung.[42]
In December 2016, Kyuhyun confirmed he would release his first Japanese albumOne Voice on February 8, 2017[43] and held his second Japan tour,Super Junior-Kyuhyun Japan Tour 2017 ~One Voice~, from January 18 to March 5, 2017.[44]One Voice reached number 1 on Oricon's daily chart,[45] and it ranked number 1 on Oricon weekly album chart in less than a week. With this album, Kyuhyun became the first solo foreign male artist from a group to top the chart.[46]
In May 2017, it was announced that Kyuhyun would release a single titled 'Goodbye for Now' on May 24, a day before his enlistment date.[47]
2019: Return from military,The Day We Meet Again, andKing of Masked Singer
Following his discharge from his mandatory military service on May 7, 2019, Kyuhyun held a fan meeting, Meeting Again Today, on May 19 at the Peace Hall inKyung Hee University.[48] He declined to return as an MC ofRadio Star;[48] but returned as a cast member ofNew Journey to the West for its seventh season, and joined the second seasons ofSalty Tour[49] andKang's Kitchen.[50] He also participated in Super Junior's 9th AlbumTime_Slip.[51]
On May 14, 2019, Kyuhyun released his first single since his discharge, "Time with You".[52] He also released a new EP,The Day We Meet Again, featuring the lead single "Aewol-ri", on May 20, 2019.[53] Since his discharge, he also started his own YouTube channel KYU TV.[54]
On December 19, it was announced that Kyuhyun would return to the musical scene after four years since his last musical appearance. It was also his first musical appearance after being discharged from military service. He was cast in the musical "The Man Who Laughs", and was set to perform in January 2020.[58]
The song "All Day Long" was recorded by Kyuhyun as Part 3 of the OST for dramaWhen The Weather is Fine. The song was released on March 16, 2020[59] and peaked at 142 in the Gaon Music Chart.[60] The Super Junior member also recorded a remake version of the hit 1993 song "Confession Is Not Flashy" byLee Seung Hwan for OST Part 4 of the populartvN dramaHospital Playlist.[61] The remake was released on April 3, 2020[62] and peaked at 8 on the Gaon Music Chart.[60] Kyuhyun's remake of "Confession Is Not Flashy" was also nominated for the30th Seoul Music Awards for Best OST.
In June 2020, Kyuhyun along with his fellow members ofSuper Junior K.R.Y released their first Korean EP since their debut in 2006 titledWhen We Were Us (EP) (푸르게 빛나던 우리의 계절).[63] The album peaked at 1 on the Gaon Music Charts.[64]
On July 23, 2020, Kyuhyun released the music video for his single "Dreaming" as the first part of hisProject: 季 series.[65] According to the concept of this project, Kyuhyun released a single for each season for a year with "Dreaming" being the single which represents Summer season.[66]
On August 23, 2020, Toon Studio unveiled the OST "The Moment My Heart Flinched" recorded by Kyuhyun for the webtoonShe Is My Type.[67] The song peaked at 5 in the Gaon Music Chart.[60]
The second single from Kyuhyun'sProject: 季 series was released on October 8, 2020, and is titled as "Daystar".[68] "Daystar" represents the Autumn season and the music video stars actorYoo Yeon Seok.[69]
On January 13, 2021, EMK Musical unveiled the cast teaser for the musical "Phantom" in which Kyuhyun has been cast in the titular role of "Phantom" alongside Park Eun-tae, Kai, and Jeon Dong-seok.[70] "Phantom" is a musical based onGaston Leroux's iconic 1909 novel "The Phantom of the Opera (Le Fantôme de l'Opéra)".[71] Ticketing for the musical began on January 19, 2021, and is set to run from March 17, 2021, to June 27, 2021.[72]
Kyuhyun returned with his new series2021 Project: 季, starting with the first single "Moving On", released on January 26, 2021, representing the winter season.[73] The music video stars actorGong Myung and actressChae Soo Bin.[74]
The second single from the2021 Project: 季 series, titled "Coffee", was released on April 13, 2021, representing the spring season.[75]
The third single from the2021 Project: 季 series, titled "Together", was released on July 5, 2021, representing the summer season.[76]
On September 13, 2021, it was announced that Kyuhyun was cast to be in the musical "Frankenstein". He took up the role of "Victor Frankenstein", alongside Jeon Dong-seok and Min Woo-hyuk.[77]
Kyuhyun released his fourth EP,Love Story (4 Season Project 季), featuring the lead single "Love Story", on January 25, 2022, to conclude the2021 Project: 季 series.[78]
2022–2025: Soundtrack songs, departure from SM, new agency and new albums
The OST recorded by Kyuhyun for the dramaForecasting Love and Weather, titled "Promise You" was released on March 6, 2022.[79] Kyuhyun also recorded an OST titled "Departure from a Country" for the dramaSh**ting Stars, which was released on May 21, 2022.[80]
He participated in the release of Super Junior's eleventh album,The Road, in 2022.[81] The album was released in three parts, which wereThe Road: Winter for Spring,The Road: Keep on Going andThe Road: Celebration.[82]
Kyuhyun appeared in the fifth episode ofHidden Singer Season 7 on September 16, 2022, as the singer of the episode. He was shockingly being eliminated in the second round, receiving 51 out of 100 votes from the audience.[83]
On July 14, 2023, it was announced that Kyuhyun, along with his fellow group members Eunhyuk and Donghae, had decided not to renew their contracts with SM, but will continue group activities for Super Junior with SM.[84] On August 7, Kyuhyun was announced to joinAntenna as his new label.[85]
On July 19, 2023, the official teaser for the musical "Ben-Hur" was released by EMK Musical, where Kyuhyun plays the lead role of Judah Ben-Hur, having been cast alongside Park Eun-tae andShin Sung-rok.[86] This news comes after an almost two year gap from his previous musical appearance. The musical premiered on September 2, 2023, and has its finale on November 19, 2023, at the LG Signature Hall at LG Art Centre Seoul.[87] Musical Ben-Hur is based on the 1880 novelBen-Hur: A Tale of the Christ by Lew Wallace, which tells the story of a hero, Judah Ben-Hur, who meets his childhood friend, Messala, leading to a series of events involving betrayal, slavery, revenge, compassion and forgiveness.[88] During an appearance on SBS Power FM's "Cultwo Show" alongside Park Minsung and Choi Ji-hye, Kyuhyun revealed that he had injured his left foot during the musical.[89]
On January 9, 2024, Kyuhyun released an extended play calledRestart, marking his first release with Antenna.[90]
Following his mini album, he released his first full album,Colors, in the same year, on 27 November.[91]
On August 22, 2025, Kyuhyun began touring with the rest of Super Junior for their 20th Anniversary tour, "Super Show 10". The Asia tour is set to continue until early 2026, with its last tour stop in Saitama, Japan.[92]
On September 19, 2025, an upcoming album was announced for a comeback slated for November 2025. A new EP or mini album, titled 'The Classic' was released on November 20, 2025. It included 5 new songs, with 'Like Our First Snow' as the title track. The music video was released at 6PM KST, featuring tripleS' Jiyeon and actors Chun Jongmin and Kim Namji. It showed the premise of a story where a young Kyuhyun, parted ways with a ballerina, his first love from high school, to debut as a singer.[93]
On November 19, 2025, Kyuhyun was announced to be added to the cast of OD Company'sDeath Note: The Musical, a musical adaptation of the original anime series. He was cast asLight Yagami, with actor Kim Sung-cheol also cast asL. They will be officially added to the line-up schedule from January 27, 2026. The musical runs from October 14, 2025, to May 10, 2026 at D-cube Arts Center in Seoul.[94]
On the early morning of April 19, 2007, Kyuhyun along with Super Junior membersLeeteuk,Shindong,Eunhyuk, and two managers were hospitalized due to a serious car accident while returning from aSuper Junior Kiss the Radio show. The front tire reportedly burst, causing the car to hit a guard rail, spin twice, and flip over.[98] Kyuhyun, who was sitting behind the driver's seat, suffered the most serious injuries including a fractured hip, broken ribs, and facial scratches and bruises. He subsequently developedpneumothorax from a broken rib piercing his lungs and remained in a coma for four days.[99][100]
The doctor treating Kyuhyun at the time said that in order to repair Kyuhyun's pierced lungs he would have topierce a hole into his neck, thus ending his career as a singer. Kyuhyun's father, who once vehemently opposed his son's career, was the first to immediately reject the operation, stating that Kyuhyun would rather die than not be able to sing. He pleaded that the doctor find another way to repair his son's lungs.[101] In spite of this, doctors insisted that even with the surgery Kyuhyun "had about a 20 percent chance to live."[102] After fierce debate between his parents and doctors, another surgeon named Dr. Wang Youngpil suggested an alternative operation that would instead make an incision in the ribs.
Kyuhyun spent six days in the ICU before he was transferred to a regular hospital room.[103] After being moved, Kyuhyun no longer needed support from a respiratory machine, but he was not able to walk on his own until one month after the accident.[101] He was discharged on July 5, 2007, after 78 days.
On August 23, 2016, Kyuhyun underwent vocal cord surgery to treat hisvocal chord nodules. He subsequently took a break from all activities during recovery.[104]
On May 25, 2017, Kyuhyun began hismandatory military service. He received training at the Nonsan Army Training Center for four weeks before fulfilling his military duty as asocial service worker. Kyuhyun is the last member of Super Junior to begin military service.[105] Kyuhyun was discharged on May 7, 2019.[citation needed]
Together with Super Junior and Super Junior-M, Kyuhyun has endorsed various brands such asPepsi, Yamaha, 12Plus, SPAO, Kyochon Chicken,LG phone, Tony Moly, Lotte Duty Free, and Bonrich. He was also the main spokesperson for Masita Seaweed from 2011 to 2016.
In 2016, Kyuhyun was chosen to be the representative of Samdasoo mineral water along withGirls' Generation'sTaeyeon.
In 2022, Kyuhyun appeared in a commercial for Terra, a brand of Korean beer byHiteJinro. He appeared withSunmi whom he was a judge with in the reality showSing Again 2, and participating contestants Kim Ki-tae, Kim So-yeon, Yun Seong.[106]
In 2024 and 2025, Kyuhyun became the Tourism Ambassador for Taiwan for two consecutive years. He filmed several short clips and appeared on posters advertising tourism for Taiwan.[107]
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^Moon Ji-yeon (February 14, 2023)."[공식] 이승기·이동휘·지석진→규현..'브로마블' 상반기 공개" [[Official] Lee Seung-gi, Lee Dong-hwi, Ji Seok-jin → Kyu-hyun...'Bromarble' first half release] (in Korean).Sports Chosun.Archived from the original on November 12, 2020. RetrievedFebruary 14, 2023 – viaNaver.
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^Kim, Na-yeon (July 7, 2023).박은태·신성록·규현, 뮤지컬 '벤허' 캐스팅 라인업 공개 [공식] [Park Eun-tae-Shin Sung-rok-Gyu-hyun reveal casting line-up for musical 'Ben-Hur' [Official]] (in Korean). MT Star News.Archived from the original on July 7, 2023. RetrievedJuly 7, 2023 – viaNaver.
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