Sunye :
The Leader / VOCALIST
NAME :  Min Sun-Ye
NICKNAMES : The Leader, Min Jookie
BIRTHDATE : 08/12/1989
HEIGHT : 162 cm
WEIGHT : 45 kg

Yea-un :
The Big Sister / VOCALIST
NAME :  Park Yea-Un
NICKNAMES : The Queen, Park Oppa (Big Bro)             
BIRTHDATE : 05/26/1989
HEIGHT : 165 cm
WEIGHT : 47 kg

Sunmi :
The Strange One / VOCALIST
NAME :  Sun Mi
NICKNAMES : 4 Dimensional  Alien
HEIGHT : 165 cm
WEIGHT : 43 kg

Yubin :
The Funky One/ Rapper
NAME :  Kim Yu-Bin
NICKNAME : Binnie                      
BIRTHDATE : 10/04/1988
HEIGHT : 163 cm
WEIGHT : 45 kg