Name : Kim Taeyeon
DOB : March 9, 1989
Position : Leader, Main Vocalist
Height/ Weight : 160 cm/ 44kg
Blood Type : O
Training : 3 years 3 months
Name : Stephanie (Mi Young) Hwang
Stage Name : Tiffany
DOB : August 1, 1989
Position : Lead Vocalist
Height/ Weight : 162 cm/ 50kg
Blood Type : O
Training : 2 years 7 months
Name : Seo Juhyun
Stage Name : Seohyun
DOB : June 28, 1991
Position : Lead Vocalist
Height/ Weight : 168 cm/ 46kg
Blood : A
Training : 6 years 6 months