Premise: Lee Ji-yeon (born February 18, 1984), better known by her stage name Lina is a South Korean singer and musical actress. She debuted in 2002 as a member of South Korean R&B duo Isak N Jiyeon and disbanded in 2004. She later re-debut as a member of South Korean girl group The Grace in 2005 and the group currently being inactive. She currently active as a musical actress.
Hypothesis: Lee Ji-yeon used the stage name Lina