First Name: Ye Eun
Family Name: Jang
Native name: 장예은
Also Known as: Jang Yeeun;Jang Ye Eun;재이
Nationality: South Korean
Gender: Female
Born: December 9, 2004
J (재이) is a South Korean singer under High Up Entertainment. She is the maknae of the girl group STAYC. The group debuted on November 12 with the single album "Star To A Young Culture".