Birth Name: Song Jieun
Stage Name: Jieun
Birthday: May 5, 1990
Birth place: Seoul, South Korea
Label: TS entertainment
Group: Secret
Position: Main Vocalist
Blood Type: O
Twitter: @SECRETsongjieun
-She is an only child
-She auditioned for JYP at a young age and was supposed to debut with Hyorin (SISTAR) and U-JI (BESTie) but plans did not go well
- She has a solo debut with "Going crazy" ft. BAP's Yongguk