Park Jung-ah is a South Korean singer, actress and TV presenter. She first debuted as a singer in 2001, as part of the girl group Jewelry and became the group leader. She started acting in 2003 and later began a solo career in music. She hosted her own radio show, On A Starry Night, from 2006 to 2009.
She graduated from Dongduk Women's University, majoring in Applied Musicology. She also plays piano.
Park was in a relationship with Leessang's Gil Seong-joon in two years, from 2009 to 2011.