1.  Won 53rd National Rowing Championships 2000m Novice 8 Special Award in 2011 with the Infinity Challenge member for Rowing Special

2. Won SBS Best Entertainer Award in 2011

3. HaHa is a person who is shy yet is a gentleman who is always helping out or caring people (IC Ep 321)

4. Theme Song in RM: Pororo Cartoon Theme Song & Lutricia McNeal's Perfect Love

5. In 1995, his debut album was released through the OJ Project (Ok Jung Project)

6. When he first entered a agency, he was swindled. His mother paid for his 1st album to be produce, because it's his dream.

7. "A Little Boy's Story" 's lyrics is actually talking about his own story. http://www.youtube.com/watch?v=TxBCxUqwY1Y …

8. HaHa's mother is a psychologist.

9. Won MBC Daesang Award along with all Infinity Challenge casts in 2007 http://www.youtube.com/watch?v=VUowIXZKF9s …

10. Won Mnet 20's Choice Best DJ Award in 2007

11. Has released 5 albums since debut

12. Is good at voice dubbing and has dubbed in movies like Thor

13. Songs: Jump, y Boy, How are you Fine Thank You, Rosa, Hangover, Wanna Die or Date me etc

14. HaHa's Mother loves to cook, but has poor cooking skils.

15. When he was in Zikiri, he used to share the same practice room with Psy

16. "You're My Destiny" reached number 1 on GaOn Chart.

17. Is afraid of heights..

18. Producer and presenter for Haha and Mong's Journey with MC Mong in 2004 for SBS Power FM.

19. Has released a solo album in 2005 and 2011

20. Nicknames: Ha-roro, Harrad Pitt, Penguin, Playboy, The Top Little One, Childhood Friend (with Noh Hong Chul)

21. Height: 1.68 - 1.71m Blood Type: B Horoscope: Leo

22. HaHa's sister, Ha JuRi, used to be SHINee‘s Jonghyun piano teacher.

23. Has a older sister, Ha Juri, who is a pianist and currently a professor in a university

24. Has a good cooking skills

25. Graduated from Daejin University & obtained a Masters degree in Drama and Fine Arts

26. Play the lead role in movies like My Boss My Teacher, Holy Daddy etc

27. Won 2011 SBS Entertainment Awards: Best Entertainer Award (Variety Category)

28. Currently part of Infinity Challenge & Running Man Casts

29. Debuted as a singer and rapper in 2001 with HipHop boy band, Zikiri

30. Was born on August 20, 1979 in Berlin, Germany

31. Is good at nonsense quiz

32. "HaHa is a hardworking guy. Even though he have full schedule but he still take care of the people around him well." - Skull

33. His life is now entirely reggae & he mentioned he even wears a reggae underwear

34. Didn't like reggae music at first, but more of their fashion, until he met Skull.

35. Least Favourite Genre of Game in Running Man: Playing water during Winter

36. Most Favourite Genre of Game in Running Man: Game that is related to eating

37. Feels that he can play the role "SPY" best among his other characters in Running Man

38. Most Unforgettable Guest in Running Man: Park Han Byul

39. Wishes Miss A's Suzy to be the permanent casts of Running Man the most

40. Wishes to be with the same group as Kim Jongkook the most and the least with Ji Sukjin

41. Is close to Noh Hongchul and Leessang's Kang Gary even before their debut

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