Yesung's birthday support is determined by the number of stars donated by fans (points that can be gathered on the site). The more stars are gathered, the more celebratory ads are posted in various places.

When the star reaches 100 percent, a congratulatory video will be shown on the CM Board (Sagak Column) of Hapjeong Station on Seoul Subway Line 2. If the star reaches 200 percent, SM board (wall) of Gangnam Station, Subway Line No. 2, will also be shown.

If the number of stars rises to 400 percent, congratulatory videos will also be shown on the electronic display board of the waiting room at 43 stations on Subway Line 2. In addition, various products are available, including the Apgujeong CGV screen, Hongik University Station Multivision and Travel Bus commercials.

Currently, more than 100% of YESUNG's birthday project has passed and the advertisement process for CM board at Hapjeong Station has been confirmed. Attention is being paid to whether the company will be able to record a higher achievement rate for the remainder of the year.

Meanwhile, "Fan & Star" held Yesung's birthday project on Aug. 3 last year. It has been achieved by 200 percent due to the enthusiastic love of the fans. Celebrations were shown on the electronic display board near Shin Okubo Station in Shinjuku, Tokyo, for a week to coincide with Ye-sung's birthday at that time, and on the display board of the waiting room at 43 stations on Seoul Subway Line No. 2.