Krystal (singer)
Chrystal Soo Jung , better known by the mononym Krystal, is a KoreanAmerican singer and actress currently based in South Korea. Discovered by S.M. Entertainment in 2000, she began filming for commercials and music videos in 2002, and officially signed with S.M. as a trainee in 2006. She is a member of both the South Korean girl group f and the ballad group S.M. The Ballad, and has participated in various television dramas such as High Kick, The Heirs , and My Lovely Girl .
Krystal was born as Chrystal Soo Jung in San Francisco, California, where her family settled from South Korea in the 1980s. During a family trip to South Korea in early 2000, at the age of five, she and her elder sister Jessica were spotted by talent agency S.M. Entertainment, which earned her a cameo appearance in Shinhwas Wedding March music video. The agency offered them singing and dancing lessons, opting to professionally train them in a singing career. However, the offer was turned down by her parents, reasoning that Krystal was too young and at first only allowed her older sister to join the agency, who debuted as a member of the girl group Girls Generation. Since then, the Jung sisters have appeared together in many events.
Source: Wikipedia