Girls' Generation's unit group Taetiseo released Seohyun's teaser images.

On September 13, Taetiseo's 2nd album song "Whisper" was released through various music websites. It has been ranking 1st place as soon as it was released, proving their popularity.

"Whisper" has a sweet and warm melody that unites the three vocal voices well together.

To finish off the teaser images of Taeyeon and Tiffany that were previously released, Seohyun's images were released. She is wearing an off-shoulder blouse in the pictures, showing off her increased beauty.

Taetiseo will be making their official comeback on September 18.