Create a flat design illustration of a Black character singing into a microphone

Create a flat design illustration of a Black character singing into a microphone. The character should be so engrossed in singing that his eyes are closed. He should be dressed in 1990s-style gym attire, such as a bright, colorful tracksuit with geometric patterns. The illustration should be in a vibrant, colorful flat design style with simple shapes. The background should be a lively blue, with a cheerful and energetic atmosphere. Ensure the overall mood is upbeat and contagious, capturing the essence of a fun and enthusiastic performance.