"티아라 은정 “이대 음대 나온 엄마께 죄송하고 감사해요” "I'm sorry, Mom, and thank you for your help". isplus. March 25, 2010. Retrieved January 2, 2011. "...Because of Eun-jeong her mother had to end her music career. Eun-jeong revealed in a March 24th interview with Daily Sports, "She was a graduate from Ewha Womans' University with a degree in music, she quit giving piano lessons to become my manager. Back then I didn't know much, but now I feel sorry," she said."