In a press release, Simmons explains: "Coliseum is a no-holds-barred competition show between musical gladiators in the arena fighting to survive, fighting to be the champion, fighting to curry the favour of Rock Caesar. Thumbs up or thumbs down, only the strong survive."

Simmons launched the show in Cannes, France, at entertainment industry trade show Mipcom. The show will be broadcast around the world, with different regions having their own local acts.