The Influence of Four Different K-pop Star Activities on the Entertainment Companies Profits

In the process of development of the Korean pop music industry, the four leading companies have gradually controlled the market, and the development of small and medium-sized entertainment companies has encountered challenges. Taking CUBE Entertainment's G-IDLE and FNC Entertainment's SF9 as cases, this paper analyzes four common profit methods of entertainment companies - album releases, live concerts, endorsements, show appearances, and reality TV programs - can bring profit margins, find activities that can give small and medium-sized companies a higher return on investment, put forward more realistic, sustainable development plans to smaller K-pop enterprises.