Rice circle:
The fan group is called "rice", and the circle they form is called "rice circle" and "rice ball". In the past, chasing a star or band mostly bought albums to watch concerts, which were basically loose powder, and there was no concept of rice circles. In recent years, with the expansion of fans and the continuous development of idol economy, many ways have emerged, such as buying peripheral products for idols, renting advertising space for publicity, voting, and doing public welfare activities.