JaebeomReal Name: Jay Park
Korean Name: Park Jaebeom (박재범)
Date of Birth: {{birth date and age|1987|4|25}
Position: Leader, Vocalist, Rapper, Main Dancer,
Jaebeom is the leader and oldest member. He was born in Seattle, Washington, where he also auditioned for JYP Entertainment.
JunsuReal Name: Kim Junsu (김준수)
Date of Birth: January 15, 1988 (1988-01-15) (age 21)
Position: Lead Vocalist
Junsu is know as the main vocalist of the group. He is originally from Daejeon, Korea.
NichkhunReal Name: Nichkhun Buck Horvejkul
Stage Name: Nichkhun (닉쿤)
Date of Birth: June 24, 1988 (1988-06-24) (age 20)
Position:Vocalist, Dancer
Nichkhun is a Thai American. He was born in Rancho Cucamonga, California. He was scouted by a talent agent in Hollywood, California while he was attending a Korean concert. Consequently, he had to learn Hangul Korean and Mandarin Chinese in order to partake in the group's activities.
TaecyeonFull Name: Ok Taecyeon (옥택연)
Date of Birth: December 27, 1988 (1988-12-27) (age 20)
Position:Lead rapper, Vocalist, Dancer
Taecyeon is the main rapper of the group. He was born in Seoul, South Korea but immigrated to Boston, Massachusetts at a young age. He auditioned for JYP Entertainment in New York.
WooyoungFull Name: Jang Wooyoung (장우영)
Date of Birth: April 30, 1989 (1989-04-30) (age 20)
Position:Vocalist, Dancer
He is from Pusan, Korea and was selected as a JYP trainee through MGoon's JYP auditions. He won first place in this audition.
JunhoFull Name: Lee Junho (이준호)
Date of Birth: January 25, 1990 (1990-01-25) (age 19)
Position:Vocalist, Dancer
Junho joined the one day group following a winning of a contract with JYP Entertainment after he won a contest in JYP's Superstar Survival in 2006.
ChansungFull Name: Hwang Chansung (황찬성)
Date of Birth: February 11, 1990 (1990-02-11) (age 19)
Position:Vocalist, Rapper
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credit: wikipedia