Fan & Star opened Hongja's birthday event.

Fan & Star, a site that delivers singer ranking information, is carrying out a specials project for Hong Ja on September 13th. It's a large advertising event to celebrate his birthday on September 29th.

Hongja's birthday event will be held in cooperation with fans and "Fan & Star." Success is determined by the number of rainbow-specific points (points that can be collected on the site) that gather in the project.

Participation in support is possible in the ADs section on the Fan & Star website. It is a method of donating stars that fans have collected hard to advertise. Stars can be obtained by doing various activities on the site or completing various missions.