Group

TTS

TTS (Taetiseo) is the first subunit of Girls' Generation, comprising Taeyeon, Tiffany, and Seohyun. They debuted in 2012 with 'Twinkle' and released the mini-albums 'Holler' (2014) and 'Dear Santa' (2014). 'Twinkle' peaked at number two on the Gaon Chart.