On May 30, 2014, Taeyeon released the song "Love, That One Word" for the drama "You're All Surrounded" of SBS. The song has peaked the top ten in several lists. At mid-year, Taeyeon concentrated on her activities with the TTS sub-group. They released their second EP, "Holler", in September 2014; the album debuted in the first place of Billboard World Albums and Gaon Weekly Charts. Taeyeon took responsibility for the selection of the album's single. During the promotion period, the three singers performed on the reality show, "The TaeTiSeo". The show had a more personal and close side focusing on the three singers, revealing how they live their normal daily life. Taeyeon declared: "If it were not for the passionate members of Girls' Generation, I would not have had the opportunity to sing."