Jessica Jung Korean name: Jung Su-yeon is a Korean singer, model, and dancer. She is a member of the Korean girl group Girls' Generation. She made her debut as a singer on August 3, 2007.
Born in San Francisco, California, Jessica can speak Korean and English fluently. She auditioned at the SM Casting System and joined the company in 2000. She was trained at SM for 7 years and 6 months. She currently resides with her fellow group mates from Girls' Generation and shares a room with fellow group mate, SooYoung. She also has a sibling named, Krystal Jung, who is a member of Korean girl group f(x).