Crayon Pop is participating in famous singer Kim Jang Hoon's "Korea Firefighter Project". This project is to honor the humble and brave firefighters in Korea. They are going to release a theme song dedicated to them titled 'Hero'.
In addition to that, the song will be released in various music portals on February 5 and the profit that will be collected will go to the firefighters and their families.
Here are the concept photos: