SG Wannabe Lee Suk Hoon made a preview of his comeback.

On his Twitter, Lee Suk Hook posted, "I can do it! Lee Suk Hoon finished his service on October 21. I will be back with good music for all of you. I miss you guys."

In the photo, Lee Suk Hoon has a picture of himself in an army uniform.

In response, people said, "I'm already looking forward to your comeback", "I'm glad you made it back safely", and "I miss SG Wannabe so much."

Lee Suk Hoon began his service in the army on January 22, 2013 and completed his service on October 21.