Lee Seok Hoon is a South Korean singer and member of SG WANNABE (SG 워너비). He graduated from Dong Incheon High School and later obtained an associate's degree in Video Music from Dong-Ah Broadcasting Arts University, a bachelor's degree in Broadcast Music from Cheongwoon University, and a master's degree in Journalism and Information from Kyunghee University.

He made his debut in April 2008 when he joined as the group's new vocalist with their fifth album, "My Friend". The group debuted in January 2004 and experienced huge commercial success with their first 4 albums despite not showing their faces and not starring in any of their music videos. They felt their physical traits were not up to South Korean standards, so they were "faceless singers" for several years.

In 2008, original member Chae Dong Ha left the group, and he auditioned to replace him, ultimately being chosen by the other 2 members and the agency. However, in 2011, they faced a rough patch as Kim was involved in a hit-and-run investigation, his military enlistment was quickly approaching, and former member Chae committed suicide due to depression. So, they decided to go on an extended hiatus.

He enlisted for his mandatory military service on January 22, 2013, and was discharged on October 21, 2014. After serving, the group returned in 2015 (after a 4-year break) and has continued their commercial success.

Their contracts with CJ ENM ended in 2019, and since then, each member has been represented by different agencies. He is managed by C9 Entertainment (씨나인엔터테인먼트).

In March 2021, they appeared in an episode of "Hangout With You" (also known as "How Do You Play?"), marking their first live performance in over 3 years.

(Source: MyDramaList) Edit Biography