There are at least seventeen bands called C4: 1. a Hardcore band from Bulgaria 2. A rapper from Texas, United States 3. An electronica artist from Ohio, United States 4. A side project of Michael Angelo Batio, a musician from Illinois, United States 5. A DJ from China 6. A hip-hop duo from Florida, United States 7. A rock band from Japan 8. an experimental artist from Belgium 9. A rock band from the United States 10. A reggaeton band from Chile 11. A DJ from Hungary