Facts:   - module: yes genre = r & b , pop label = nega background network associated_acts = brown eyed girls = solo_singer instrument = vocals , piano    - years active: 2002 -- present    - signature: jea 's signature , 2007.png    - caption: jea tonight 37.2 ° c '' -lrb- december 24 , 2012 performing -rrb- at brown eyed girls ' concert ``    - birth name: kim hyo-jin -lrb- 김효진 -rrb-    - height: 158.9 cm      - birth date: 18 september 1981    - name: jea    - image: file :37.2 _ jea.jpg    - birth place: seoul , south korea    - religion: catholic    - occupation: singer , songwriter   Based on these bullet points, write a short biography describing the life of jea -lrb- singer -rrb- .
A:
kim hyo-jin -lrb- 김효진 , born september 18 , 1981 -rrb- , better known by her stage name jea -lrb- 제아 -rrb- , is a south korean singer best known as the leader of k-pop girl group brown eyed girls .as a solo artist , she has contributed numerous songs to various soundtracks .