Sung Si-kyung (born April 17, 1979) is a South Korean singer, songwriter, radio DJ, host and actor.

While at Korea University, Sung participated in an online singing competition and was awarded 1st place in the country. The winners of the song festival released a compilation album, from which his song “The Road that Leads to Me” became a major hit. Due to the popularity of the song, the compilation album sold nearly 100,000 copies, even though it was a promotional album. This helped Sung to attain stardom in November 2000.

Sung’s official debut was in 2001 when he released his first album, 처음처럼 (Like the First Time). Mainly consisting of ballads, his debut album contained three hits and made him the best newcomer singer of the year. Participating as a guest singer on You Hee-yeol’s album also contributed to his rising popularity. His second album released in 2002 was also a success, selling more than 650,000 copies. He continued to release album after album, averaging about one a year.

Sung currently has released 7 full albums – 5 are traditional ballad/pop albums, a “remake” album and a “special” album called “Try to Remember.” He also released a “Best of” album in Japan which included his first Japanese title. His sixth and final pre-army was released in 2008.

in September 2011, he made his comeback to the music industry with his seventh album. The album’s title song “The First Time” is a sweet and delicate ballad that was also released earlier in the year as a digital single. He decided to produce and release a regular album instead of a mini or a single to express his appreciation for his fans that had waited so long.

The album consists of 12 songs composed by singer-songwriters Yoon Sang, Kim Hyun-hhul and Kang Seung-won. It also features a duet with Lena Park and IU. Also included is the Secret Garden OST theme song, “You’re My Spring”.

Sung’s comeback track “난 좋아” (Even Now) released on his 7th album debuted at number 5 on Billboard’s Korea K-Pop Hot 100 for the week of 22 September.