JeA

Kim Hyo-jin (Hangul: 김효진; born September 18, 1981) better known by her stage name JeA is a South Korean singer and songwriter. She is best known as the leader of South Korean girl group Brown Eyed Girls. As a solo artist, she has contributed numerous songs to various soundtracks.
Career.
Brown Eyed Girls.
JeA is the one responsible for the creation of Brown Eyed Girls and was actively involved in the selection of the other members besides herself. The four members – JeA, Narsha, Ga In and Miryo – performed several small shows under the name "Crescendo" before officially debuting as Brown Eyed Girls in 2006. JeA is the leader and main vocalist of the group.
Solo career.
JeA released her first solo album, "Just JeA", in 2013. She is the last of the members of Brown Eyed Girls to release a solo album.
Aside from being a singer she's also a composer and producer. She started composing for her group with their second album and later on wrote songs for other artists also. She expanded her resume by trying her hand on producing with the Brown Eyed Girls' The Original and her solo album.
Song writing.
JeA is an avid songwriter, and has written many songs for herself, Brown Eyed Girls and other artists.