Working Man is a tribute project for Rush led by Mike Portnoy. Some artist who took part : Steve Morse, Billy Sheenan, George Lynch, Devin Townsend, Sebastian Bach, Stuart Hamm, Sean Reinhart, James Murphy, Deen Castronovo, Fates Warning, Michael Romeo, John Petrucci...
There are at least fsixteen 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