Holler is the second EP by Girls' Generation's sub-unit TTS. It was released digitally on September 16, 2014, and physically on September 18, 2014. This marked the group's first release, after being on a two-year hiatus after their debut release of Twinkle in 2012.
GIRLS' GENERATION is returning fans’ love with great results at home and abroad by getting awarded the top prize at music program in 10 days of their comeback, followed by the top of record chart and the top of Billboard World Albums chart.
On September 26th, Girls’ Generation – TTS performed on KBS’s “Music Bank”.
This was the subunit’s first time appearing on “Music Bank” for this promotion cycle, and the three members sang “Adrenaline” and “Holler” from the new “Holler” mini-album. “Adrenaline” was performed in black outfits, and “Holler” was performed in white.