Problem
First, you identify what or whose fan are you? and explain briefly who he/she or they are and what they do, and Second, find what the fandom did for the stars or specific fandom culture if the fandom did.
Third, tell about what is their influence? on anything such as culture or economic or politics ... on young people ... explain how could they influence the people or culture?
(One of our hypotheses is their power and influence comes from strong fandom)
In conclusion, we can explain how fandom coculture works for contemporary culture.
Fandom is not just for the group of fans of someone but the group who have common interests (mania groups) in related with the something subcultural for examples (i) AMY for BTS, and (ii) Mania people who are interested in cartoon characters like Doraemon.