The more Rainbow Stars collected, the more locations will display congratulatory ads.

Source: Fan N Star

On the 16th, the idol fan platform "Fan N Star" launched a surprise support event to celebrate SEVENTEEN Jeonghan's birthday. This is a global fan project where birthday congratulatory advertisements will be displayed in various locations.

The success of Jeonghan's birthday celebration project depends on the number of Rainbow Stars ( can be collected on the site) donated by fans. If more than 20,000 stars are collected, the congratulatory advertisements will proceed.

If 55,000 stars are collected, a congratulatory video will be played on the CM Board at Hapjeong Station in Seoul. If 50,000 stars are collected, a congratulatory video will also be shown on the Shinjuku Shin-Okubo billboard in Tokyo, Japan. Additional rewards include M-Screen in Hongdae, large digital billboards in Jamsil, bus ads in Seoul, and other premium gifts.

The event runs until September 22 and can be participated in through the "ADs." section on the "Fan N Star" website.