Birth Name: Seo Joo-hyun (서주현)
Nicknames: Maknae (the youngest one), Seororo, Hyun, Joohyun
Position: Lead Vocalist
Date of Birth: June 28, 1991
Zodiac Sign: Cancer
Language: Korean (Fluent), English, Chinese (Fluent), Japanese (Basic)
Specialty: PianoCasted: 2003 SM Casting System
Training Duration: 6 Years 6 Month
School: Dongguk University (동국대학교) Department of Theater | graduated from Jeonju Art High School (attended Daeyeong High School)
- 2005 ‘Smart Student Uniforms’ ad models (with DBSK)
- 2009 Featured with Joo Hyunmi ‘Jjalajjaja (짜라자짜)‘
- 2009 CF ‘Post Cereal‘ (with Sunny, Sooyoung)
- 2010 CF ‘Clean and Clear’ (with f(x) Krystal)
- 2010 Variety show MBC ‘We Got Married‘ (with CN Blue Jung Yong-hwa)
- 2010 OST for MBC drama Kim SooRo ‘It’s Okay Even If It Hurts’
- 2010 Voice Actor for ‘Despicable Me‘ Korean title: ‘Superbad’ (as Edith)
- 2010 MV TRAX – ‘Oh! My Goddess‘
- The youngest member of SNSD. She’s the only child in her family, she feels thankful to gained eight older sisters through SNSD.
- She is known for her upright personality.
- Seohyun loves sweet potato so much that she claimed she’d pick sweet potatoes over male. In the make-believe marriage variety show ‘We Got Married’, she was coupled with CN Blue’s Jung Yonghwa and they were given the nickname “Sweet Potato Couple”.
- Her favorite anime is Keroro Gunsou, while her favorite male celebrity is Johnny Depp. She also loves dorama Nodame Cantabile. Her idol is UN’s General Secretary Ban Ki-moon.
- Seohyun hates unhealthy foods.
- Seohyun went to the same high-school with Yoona (Daeyeong High School) but then she transferred to Taeyeon’s alma mater, Jeonju Arts High School, and graduated there. Now she’s attending Dongguk University’s Department of Art along with Yoona.