An Chil-hyun (Korean: 안칠현; born October 10, 1979), known professionally as Kangta (강타), is a South Korean singer, composer, songwriter, record producer, actor and radio personality. Known for his work as a member of boy band H.O.T., he is currently an executive at his longtime agency SM Entertainment since 2005. He is also the chief producer of Smashhit from SM's label Kreation Music Rights since 2023 and the general producer of SM's music label SMArt since 2025.
Kangta was discovered at Lotte World, a theme park, when he was 13 years old. He made his debut on-screen appearance as a backup dancer together with future bandmate Moon Hee-joon for labelmate singer Yoo Young-jin. Kangta eventually decided to become a singer with Moon and three others, Jang Woo-hyuk, Tony An, and Lee Jae-won to form H.O.T. in 1996.
The group disbanded in 2001 when the group's contract expired and the members decided not to renew it.
2001–2002: Solo debut, Polaris and Pine Tree
Kangta released his first studio album Polaris on August 16, 2001, and began his solo career with the title track "Polaris". On this album, he wrote, composed and arranged seven songs and produced the album. Even at the beginning of the recession in the music market, it sold 300,000 copies within a week of its release, ranking first in record sales, and was a great success with sales close to 500,000 copies. In December of the same year, SM Entertainment's singers began to enter China in earnest, starting with performances in Beijing and Shanghai, China.
From March 4 to October 20, 2002, he was the main DJ of Kangta's Declaration of Freedom at KBS 2FM, and from October 21 to April 20, 2003, he was a double DJ with Shin Hye-sung. Later in March, the heroine Seong-so (played by Lim Eun-kyung) was cast as the beloved singer Ga Jun-oh in Jang Sun-woo's film The Second Coming of a Match Girl and made a cameo appearance.
On August 1 of the same year, he released his second studio album Pine Tree for the first time in more than a year, and as with his first album, he recorded more than 70% of his own songs. Prior to his broadcast activities after the album's release, his first solo concert Kangta 1st Concert 'Pine Tree' was held three times on Aug. 24 and 25 at Jamsil Indoor Gymnasium.
2004–2005 : Acting roles and Director of SM Entertainment
Kangta received several offers and accepted a drama offer in China. In 2004, he starred in a drama called Magic Touch of Fate together with Taiwanese actors and actresses, Ruby Lin and Alec Su. Kangta portrayed the role of the evil magician Jin-Xiu. A few months later, he starred in a KBS drama, Loveholic in Korea.
In 2005, Kangta was appointed director when he re-signed with SM and received a portion of the down payment as a stock.
2005 : the third studio album Persona
Kangta released his third album, Persona, in 2005. In July of the same year, the third studio album Persona was officially released in Taiwan and China. The album became a hot topic because it had 500,000 pre-orders. The title song "Persona" was a big hit in China.
In 2005, Kangta was chosen as the best Korean singer overseas, according to Arirang International Broadcasting. A poll was issued over the internet, allowing only people outside of Korea to vote.
Kangta also acted in his second Chinese drama, Love in the City 2. In the series, Kangta portrayed the life of a successful CEO with a dull life. In March Kangta was announced to be playing a supporting role in JTBC's 2012 drama Happy Ending as Kim So-eun's love interest.
In 2007, he filmed two dramas and Love in the City 2 aired on October 1, 2007. In January 2007, Kangta took part in the Hallyu Festival in Osaka, which also featured Jun Jin and Lee Min-woo of Shinhwa, SG Wannabe and actor Song Seung-heon at the Osaka Dome.
Kangta enlisted for mandatory military service in April 2008 for 21 months of active duty. During which time he starred in military musical Mine with rapper Yang Dong-geun. It is about the true life story of Lieutenant Lee Jong-myung, who lost his legs in a land mine explosion near the demilitarized zone, in June 2000, when he saved fellow soldier, Sul Dong-seob from the minefield.
After two years and five months of hiatus from the entertainment industry due to Korean military service, Kangta released Chinese EP Breaka Shaka, which was released on September 14.
In 2013, he produced the OST for That Winter, the Wind Blows, and "Gray Paper" and "And One" were written and composed by Kangta. He also produced Zhou Mi's album Rewind in 2014.