Name : Woo Sung Hyun (우성 현)
Name stage : Kevin (케빈)
Birthday : November 1991
Borthplace : Danville, California, United States
Height : 181 cm
Weight : 50 kg
Blood type : O 
Religion : Kristen
Hobbies : watching movies, pla music, read a book.
Exsperttise : poppin dance, play guitar, piano
Position : main vocalist