Leeteuk has sent a touching message to fans on Instagram, following his emergency surgery for gallbladder inflammation.
In his Instagram post, Leeteuk apologized and thanked fans for their support.
"I want to say one more time that I am truly sorry and thankful because I made many people very worried. From now on, I will take better care of my body and health. Again, I am so sorry, and thank you so much for your concern."
We hope for a speedy recovery, Leeteuk!