1. Seo JooHyun is her real name

2. Her birthday is June 28 1991

3. Her blood type is A

4. She is the Maknae (youngest) in the group

5. She and Yoona are childhood friends

6. She loves eating Goguma (Sweet potatoes)

7. She hates hamburgers

8. Tiffany is her former roomate

9. Hyoyeon is her current roommate

10. If you notice, She sometimes sings first in some of SNSD’s songs like halik You. Honey. Gee. Oh and Way to Go

11. She is a lead vocalist in the group

12. She once brainwashed Taeyeon into watching Keroro.

13. She loves watching Keroro and Nodame Cantabile

14. She is the segundo tallest in the group...