Fan Culture
Although the breakup of TVXQ! was extremely controversial, JYJ unofficially recognizes TVXQ!’s fanclub, Cassiopeia (AKA Cassies), as their fanclub. To date, JYJ has not created a separate fanclub for their trio. See more about Cassiopeia at TVXQ’s exhibit. Junsu, Yoochun, and Jaejoong communicate with their fans via Twitter, and their management company (C-JeS Entertainment) posts updates about JYJ activities on the group’s official Facebook profile.