Girl group SECRET's member Song Jieun showed off her thin legs.

On September 2, Song Jieun posted a picture on her Instagram.

In the picture, Song Jieun is sitting in a practice room, taking a picture of herself through the mirror. Her skinny body, especially her thin legs, caught much attention.

Internet users who saw this commented, "Her legs are so skinny," "I'm so jealous of your body," and "She keeps getting prettier."

SECRET is currently working with their new song "I'm In Love".