Taeyeon teases with TaeTiSeo's adorable group photo

Taeyeon is back on Instagram again with a lovely group photo with Seohyun and Tiffany.

TaeTiSeo will make their comeback on 16th September, to keep fans excited, Taeyeon posted, 'Something is going to be posted as you think, it's none other than Taengsta'.

The members are seen posing happily in the photo, do you anticipate their return?