Secret’s Song Jieun
She auditioned for JYP Entertainment at an early age. While in JYP Entertainment, she sang OSTs of Korean dramas in 2007 and 2008. Under JYP Entertainment, she was set off to debut as a three member girl group with Sistar's Hyorin and EXID's Yuji but some issues came up which led they being unable to debut together and instead, all of them debuting with separate groups. Jieun then left JYP Entertainment and joined TS Entertainment, where she finally debuted as a part of a girl group, Secret.