Jaeseong (Classmate) Facts
- Group K-Pop Classmate
- Position Vocalist and Maknae
- He was a trainee at Fantagio Entertainment.
- He was originally preparing to make his debut as a member of ASTRO but for unknown reasons, he was unable to make his debut with them.
- He was the pianist in the music video of “Paradise (Piano Ver.)” of his agency partner Si Yeon.
Jaeseong (Classmate) Music
- Lee Si Eun – Sometimes (2020)
- Classmate – 위로가 필요한 나에게 (Jae Seong Solo) (2020).
- Classmate – Intro (2020)
Jaeseong (Classmate) TV Programs
- Superstar K (Season 2) (Mnet, 2010)