Another special thing about K-pop fandom is covering K-pop dances. K-pop artists are known to have synchronized and complex dance routines. Yet they are well-choreographed. Fans all over the world create dance cover groups and learn the dance routines to certain K-pop songs. Then they would compete at festivals like K-pop Cover Dance Festival, which is held in Korea. They would first have to submit their video online. Then, the videos would all be viewable on their cite and it would be open for voting. Certain groups would be chosen to compete live at the K-pop Cover Dance Festival.
The festival for this year apparently already started. And the final round will be some time in October. You can see more information about the festival here.