Mazegele Boy Sirjay, often referred to as Mazegele Boy, is a Tanzanian recording artist and musician known for his work in the Singeli genre. He has gained significant popularity in the streets of Dar es Salaam for his high-energy vocal delivery and his mastery of "Mazegele" beats a particularly fast-paced and instrumental-heavy sub-style of Singeli. He is considered one of the rising stars in the underground and mainstream Singeli scenes.