Girls' Generation's member Taeyeon revealed a self-camera photo in celebration of member Tiffany's birthday.

Today, Taeyeon posted on her Instagram, "Happy B-day my American friend" along with a picture.

In the picture, Tiffany and Taeyeon are making funny faces at the camera. The two revealed various poses in the 4-cut picture.

Internet users who saw this commented, "Happy birthday, Tiffany," "Taeyeon is so silly," and "Both of them are so cute."

Photo Credit: Taeyeon Instagram