TaeTiSeo

Stage Name : Taeyeon

Birth Name : Kim Tae Yeon

Date of Birth : March 9, 1989

Position : Leader, Main Vocalist

Stage Name : Tiffany

Birth Name : Stephanie Hwang Mi Young

Date of Birth : August 1, 1989

Position : Lead Vocalist

Stage Name : Seohyun

Birth Name : Seo Joo Hyun

Date of Birth : June 28, 1991

Position : Lead Vocalist, Maknae