Jeon Ji Yoon 4 minute.

Name: John G. Yoon.
Position: vocals.
Date of Birth: October 15, 1990.
Height: 165 cm.
Weight: 47 kg.
Blood Type: O.
Talent: Singing, dancing.
Hobbies: Cooking, Ee Tong Song.
Education: Dong Deok Female High School (graduated).