Isak N Jiyeon (이삭 N 지연) was a Korean female duo formed by SM Entertainment in 2002. The group has since been disbanded. Jiyeon was involved in SM's project named The Grace, a four-member Korean girl group that sings, dances and acts. Isak was featured in the SM Town albums and videos and continued to do a variety of different work, such as being DJ and VJ for Arirang TV, MC work for various networks, and small acting roles on network television.
Kim Isak (김이삭) (b. (1985-05-25) May 25, 1985 (age 29) in Frankfurt), real name Ida Dene Simmons, was a VJ for Pops in Seoul on Arirang TV. She left SM Entertainment in 2012. Currently a DJ for "Kpoppin" on Arirang Radio.
Lee Jiyeon (이지연) (b. (1984-02-18) February 18, 1984 (age 30)), is now known as Lina from The Grace. She is currently active as an actress on TV dramas and in musicals.