Girls' Generation sub-unit TaeTiSeo has dropped their cover image for second mini-album, 'Holler,' and pre-release track, "Whisper."

The girls look pretty and lovely as usual with matching light-colored hairstyles.  The song itself is incredibly soothing and catchy with the trio's talented vocals.

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As you wait for the 2nd mini-album release on September 16, check out the pre-release track below.