Fan & Star, where fans and stars become one, conducted a birthday project for the group ITZY Chae Ryung on May 10. The event is a large advertising event to celebrate Chae Ryung's birthday on Jun 5.

Success will be determined by the achievement rate of stars (points that can be gathered on the site) based on fan participation. In addition, it is expected that the birthday ads will include congratulatory messages written by fans themselves.

If the number of stars rises to 50 percent, a video of Chae Ryung's birthday will be displayed on the CM board of Hapjeong Station on Seoul Subway Line 2. When the number of stars reaches 100 percent, the SM board (wall) of Gangnam Station on Subway Line No. 2 will also be exposed.

If the number of stars rises to 200 percent, congratulatory videos will also be shown on the electronic display board of the waiting room at 43 stations on Subway Line 2. When 400% of stars are reached, images are exposed up to Apgujeong CGV screen. In addition, a variety of gifts are waiting for fans, including a multi-vision at Hongdae Station and an advertisement for a travel bus.

Chae Ryung's birthday support runs through May 26 and can participate in the "Star Market" section on the "Fan & Star" website.

Meanwhile, ITZY, which includes Chae Ryung, made its official debut in February by releasing its digital single album "IT'z Different" and title track "DalaDala."