Girls Generation-TTS is a three-member sub-unit of the South Korean girl group Girls Generation, consisting of members Taeyeon, Tiffany and Seohyun.was formed by the music label S.M. Entertainment. The name of the group is composed of the first letters of the three singers. The first single, Twinkle, was released on April 29, 2012. On the same day, their debut EP "Twinkle" was also released, and was the first album by a Korean artist to rank number 1 on the Billboard World Albums chart. The same-title song sold 2,520,485 digital copies in South Korea through July 2014, and the album sold 155,521 copies in South Korea. The second single was "Holler" and could follow the success of the first song. TTS became the third Korean artist, and the first female artist, to have more than one number 1 on the Billboard World Albums chart.
Singles:
Twinkle (2012)
Holler (2014)
Whisper (2014)
Dear Santa (2015)
