Fan & Star, a site that delivers idol ranking information, is holding a special event for group KNK member Kim Ji-hoon on December 19th. It is an advertising project to commemorate Kim Ji-hoon's birthday on February 20th.

Kim Ji-hoon's birthday celebration event will be held simultaneously at the "Fan & Star" service in Korea, China, Japan, and English. The success will be confirmed by the number of rainbow-specific (points that can be collected on the site) donated by domestic and foreign fans.

The way to participate in the project is simple. It is a method of donating stars that fans have collected hard to advertise. The number of donations is unlimited, and other products can be added.