in order from the oldest to magnae:
Park Jin-young (JYP): 1972.01.13
JYP
Lim Jeonghee (J.Lim): 1981.05.17
J.Lim
Jung San (San E): 1985.01.23
San E
Lee Changmin (2AM): 1986.05.01
2AM Changmin
Im Seulong (2AM): 1987.05.11
2AM Seulong
Wang Fei Fei (miss A): 1987.04.27
miss A Fei
Kim Junsu (2PM): 1988.01.15
2PM Junsu
Nichkhun Buck Horvejkul (2PM): 1988.06.24
2PM Nichkhun
Kim Yoobin (Wonder Girls): 1988.10.04
WG Yoobin
Ok Taecyeon (2PM): 1988.12.27
2PM Taecyeon
Meng Jia (miss A): 1989.02.03
miss A Jia
Jang Wooyoung (2PM): 1989.04.30
2PM Wooyoung
Park Ye-eun (Wonder Girls): 1989.05.26
WG Yeeun
Min Sun-ye (Wonder Girls): 1989.08.18
WG Sunye
Jo Kwon (2AM): 1989.08.28
2AM Kwon
Lee Junho (2PM): 1990.01.25
2PM Junho
Hwang Chansung (2PM): 1990.02.11
2PM Chansung
Jung Minjoo (JOO): 1990.10.11
JOO
Jung Jinwoon (2AM): 1991.05.02
2AM Jinwoon
Lee Min-young (Min, miss A): 1991.06.21
miss A Min
Ahn Sohee (Wonder Girls): 1992.06.27
WG Sohee
Woo Hyerim (Lim, Wonder Girls): 1992.09.01
WG Lim
Bae Sooji (Suzy, miss A): 1994.10.10
miss A Suzy
anyway, HAPPY BIRTHDAY JUNHO OPPAAA!! 
taken from my tumbleblog http://deenakahara.tumblr.com/
