MEMBERS:

Name: Taeyeon

Birth Name: Kim Taeyeon

Birthday: March 9, 1989

Position: Leader, Main Vocalist

Social Media:

Instagram: @taeyeon_ss

Name: Sunny

Birth Name: Lee Soon Kyu

Birthday: May 15, 1989

Position: Lead Vocalist

Social Media:

Twitter: @Sunnyday515

Instagram: @515sunnyday

Name: Hyoyeon

Birth Name: Kim Hyoyeon

Birthday: September 22, 1989

Position: Vocalist, Main Dancer

Social Media:

Instagram: @watasiwahyo

Name: Yuri

Birth Name: Kwon Yuri

Birthday: December 5, 1989

Position: Vocalist, Lead Dancer

Social Media:

Instagram: @yulyulk

Name: Sooyoung

Birth Name: Choi Sooyoung

Birthday: February 10, 1990

Position: Vocalist, Lead Dancer

Social Media:

Instagram: @syofgg

Name: Yoona

Birth Name: Im Yoona

Birthday: May 30, 1990

Position: Vocalist, Lead Dancer, Face of the group

Social Media:

Instagram: @yoona_lim

Name: Seohyun

Birth Name: Seo Joo Hyun

Birthday: June 28, 1991

Position: Lead Vocalist, Maknae

Social Media:

Twitter: @sjhsjh0628

Instagram: @seojuhyun_s

FORMER MEMBER: 

Name: Jessica

Birth Name: Jung Soo Yeon

Birthday: April 18, 1989

Position: Main Vocalist

Social Media:

Instagram: @jessica.syj

More: On September 29, 2014 Jessica was forced out of Girls' Generation because she had to choose between Girls' Generation and her business BLANC. Jessica told that she would put Girls' Generation activities before her business but was still forced to leave the group.