Warner Music's signing of virtual singer Noonoouri marks a major shift in the stance of a music giant that previously resisted AI music. The global music industry is beginning to explore the applications of AI in music creation and copyright protection. AI technology is gradually improving the voice of virtual singers, making it closer to that of real performers. After the synthesizer era, modern AI technology is changing the way music is created. Virtual characters are becoming more realistic, and AI music is emerging as a new trend in the music industry.