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On September 22, photos were uploaded through their personal Instagram accounts in which Sooyoung, Taeyeon, and YoonA celebrated their fellow member's birthday. The photos show the four artists dining together while posing for the camera that is spiced up with some filters. Check out some of the photos below!

Happy Birthday, Hyoyeon!

?????? ??? #birthdaygirl @watasiwahyo

A post shared by Sooyoung Choi ??? (@hotsootuff) on Sep 22, 2017 at 5:50am PDT

??? #happybdayHYO

A post shared by Sooyoung Choi ??? (@hotsootuff) on Sep 22, 2017 at 8:29am PDT

#922 #???

A post shared by TaeYeon (@taeyeon_ss) on Sep 22, 2017 at 10:04am PDT