The mysterious question mark and asterisk on their previous teaser image was revealed to be for�Shinhwa's�17th Anniversary Concert!

SEE ALSO: Shinhwa drop first teaser image for their comeback with 12th album

Shinhwa will hold their '17th Anniversary Concert' at Olympic Park Gymnastic Stadium on March 21-22. Their official fanclub Shinhwa Changjo will get access to tickets via Interpark from January 9-30.

Their agency Shincom Entertainment stated, "The group Shinhwa will hold their 17th Anniversary Concert in March. As much as their 12th full-length album will be released this year, we anticipate that they will show various performances and stages for this concert so we ask for a lot of interest and support for it."

As mentioned previously, Shinhwa will make their comeback with their 12th full-length album next month.