Fan & Star, a website that conveys information on idol rankings, kicked off a surprise event on March 20 for the 1the9. This is a celebratory advertising project for the 1the9, which will mark the first anniversary of its debut on April 13.

The event will be held simultaneously at the "Fan & Star" service in South Korea, China, Japan, English and Vietnamese. It adds meaning as both domestic and foreign fans can participate together.

How to participate in the event is simple. It is a way of donating stars that "Fan & Star" worked hard on to advertising products that they want. The number of donations is unlimited and another product can be added.

Currently, the 1the9th anniversary project includes electronic display boards at 43 stations on subway line No. 2 in Seoul, as well as a variety of products including SM board at Gangnam Station, CM board at Hapjeong Station, Multivision at Hongdae Station, Media facade in Myeong-dong, and Shokuandori in Tokyo.

With the event running through April 5 next month, attention is focused on whether the event will be successful for the rest of the year.

Meanwhile, "Fan & Star" is a playground for idol fandom that provides idol ranking information, fan communities and events. It is currently holding its fourth week of voting in March. Voting continues until March 30.