Girl group SECRET's member Hyosung thanked her fans.

On October 13, Hyosung posted on her Twitter, "Thank you, my loves. It's seriously the best. The letters, the presents, everything. Thank you. What a happy 25th birthday, happy 5th debut anniversary" along with a picture.

In the picture, Hyosung is holding a two-story cake with some cake cream on her face, smiling for the camera.

Internet users who saw this commented, "Happy birthday again and congratulations on your 5th anniversary too," "Did you have a good time?," and "Congratulations! SECRET fighting!"