Abstract: With the change in times, the business model of star activities presents the characteristics of rich diversity and innovation. The rapid development of the entertainment industry makes the star activities gradually become a significant commercial phenomenon, and the commercial value behind it is increasingly prominent. The goal of this paper is to find ways to drive the economy by studying the impact of star activities on the economy. This paper mainly uses Taylor Swift's "The Eras Tour" as the case to analyze the main business model of star activities, and the impact of star activities on the prosperous age economy. The research on its impact mainly focuses on where the impact on international tourism and the pattern of the economy are mainly reflected. Through research, it is found that the star activity is the economy, and the economic recovery needs a prosperous economy, and the star activity, as the representative of the prosperous economy, is the main force to promote the economy. Through the research, the cooperation between the government and the stars has a great role in promoting the economy. This study not only allows us to identify the main business model of star activities but also to find out the impact of the nature of star activities on people's lives and even on the global economy. To better grasp the economic trend and better economic development.