Girls' Generation members revealed an image of their tough side.

Yesterday, Taeyeon posted on her instagram, "Ganzi Yuri," along with a picture.

In the picture, members Tiffany, Seohyun, Yuri and Taeyeon are seen posing for a polaroid picture. They are making a 'W' with their hands and showing off their tough charisma. This image was very different from their usual feminine image on stage.

Internet users commented, "This look suits them too", "They still look pretty" and "Yuri looks the most fierce."

On the other hand, Girls' Generation will be continuing their Japan arena tour until April 21.