The concert 'Black Dress' is a donation-based, charity concert. It's free for everyone who attends, and fans who attend will have a chance to donate. Fans who are registered members of CLC's official fanclub will be given preference first.

SEE ALSO: ILLIT member Wonhee already lands a big CF deal just weeks after debut

The money collected through fans' donations will be given to help children with childhood diabetes. The concert will take place on April 1 at 5PM KST at the Shinsegye Mesa Hall. Happy upcoming 3rd anniversary to CLC!