On August 4, Taeyeon posted the below photos of the 8 Girls' Generation members on Instagram along with the message, "August is a very special month for Girls' Generation. That's why you really have to watch for Girls' Generation in August. Congrats, Girls' Generation."
The SM Entertainment girl group made their debut with 'Into the New World' on August 3, 2007, and it seems Taeyeon wants fans to remember the special day.
In other news, SM Entertainment has confirmed Girls' Generation will be debuting a new subunit!