Jessica Jung (Korean name: Jung Soo-yeon; Hangul: 정수연; Hanja: 鄭秀妍; born April 18, 1989), better known by her first name Jessica, is an American singer, dancer, actress and model. She was born in San Francisco, and is fluent in both Korean and English. She is a member of the South Korean nine-member girl group Girls' Generation.
Jessica Jung was born on April 18, 1989 in San Francisco, California. She auditioned at the SM Entertainment Casting System and joined the company in 2000. She had been trained for seven years as a trainee before debuting with Girls' Generation.
Her younger sister, Krystal Jung, is a member of the Korean girl group f(x), also created by SM Entertainment.
Jessica was the first member to be signed with SM Entertainment in 2000. In 2007, she was chosen as a member of the group Girls' Generation. The 9-member girl group debuted on August 5, 2007.
The group has released two full albums, three mini-albums, and various singles. Their 2009 hit single "Gee" holds the record for being the longest running #1 song on KBS's Music Bank, having held the #1 chart ranking for 9 consecutive weeks. That year also saw the group winning various awards, including consecutive Artist of the Year (Daesang) awards at the Seoul Music Awards, Golden Disk Awards, Melon Music Awards, and the Korean Cultural Entertainment Awards.
Girls' Generation began a foray into the Japanese music scene in late 2010, with the Japanese remakes of their 2009 Korean hits "Tell Me Your Wish (Genie)" and "Gee".
On October 27, 2010, the group released their third Korean mini-album, Hoot, which consisted of five songs. Sumber : Wikipedia