Current state:
in hiatus
Girls' Generation-TTS (Korean: 소녀시대-태티서; Japanese: 少女時代 - テティサー) is the first sub-unit of the girl group Girls' Generation. They debuted on April 29, 2012 with their first mini album Twinkle.
Korean: 태연
Japanese: テヨン
Korean: 티파니
Japanese: ティファニー
Korean: 서현
Japanese: ソヒョン