Stage Name: Jessica (제시카) 
Birth Name: Jessica Jung Soo Yeon  (제시카 정) 
Korean Name: Jung Soo Yeon (정수연) 
Name Meaning: Beauty and Luxury 
Nickname in SNSD: 얼음공주 (Ice Princess) 
Other Nicknames: Sic, Sica, Sicachu, 물시카 (Liquid Sica), 시카효과 (Sica effect), 땀시카 (Sica of sweat), 아기싴 (Baby Sic), 인형싴 (Puppet Sic), Sexica, 깜놀싴 (Glowing Sic), 잠시카 (Sleepy Sica) 
Group Position: 2nd Lead Vocalist 
Motto: Follow my heart .. 
Languages: Korean (Fluent) , English (Fluent) , Chinese (Basic) , Japanese (Basic) 
DOB: April 18, 1989 
Height: 163cm 
Weight: 45kg 
Blood Type: B 
Sibling: Younger Sister (Crystal) 
School: Korea Kent Foreign School, Graduated 
Casted: 2000 SM Casting System 
Fancafe: Click Here [Sweet Jessica] 

Extra Information: 
Favorite Number : 52 
Ideal Man : Lee Sunho 
Favorite Song from Girls' Generation : Complete 
Hobbies: Boxing & Soccer 
Interests: Reading books & magazines, watching movies, listening to music, sleeping & singing 
Roommate/s: Hyoyeon 

Jessica Fact:
-The most effective way to wake Jessica up is to make her Laugh
-Impersonates Sharapova’s scream
-Voted “The girl you want to share an umbrella”
 -Voted “The girl you want to be with on the first snowfall”
- Awarded as the Girl with the most temper between Soshi and Kara members
- Ideal actress for horror films because of her dolphin scream
- Sleeps 12 hours a day
- Soshis has thrown her body while sleeping and still failed to wake up
- Loves to kick things that scared her
- Likes the word “flop” so much
- Walks like a man
- Trained under SM for 7 + years
- Bad cook