When a singer is MC what does it mean?

MC, in this context, stands for "Master of Ceremonies." It refers to a person who acts as the host or presenter of an event, ceremony, or gathering. In the music industry, a singer who is also an MC may perform both roles during a live performance or event. They may introduce other performers, engage with the audience, and provide commentary or storytelling between songs. By taking on the MC role, the singer adds an interactive and entertaining element to their performance, creating a more dynamic and engaging experience for the audience.