Song Ji-eun
Song Ji-eun , ( born May 5 , 1990 ) , better known mononymously as Jieun , is a South Korean singer and actress best known as a member of the South Korean girl group Secret . 
<triplet> Song Ji-eun <subj> May 5, 1990 <obj> date of birth <subj> Secret <obj> member of <triplet> Secret <subj> Song Ji-eun <obj> has part