"Bedlam" refers to 5 different bands: 1. A hard rock band from the United Kingdom 2. A grindcore band from Poland 3. A punk band from the United States 4. A progressive metal band from Hungary 5. A horrorcore rap group from the United States 1) Bedlam (originally known as Beast when it formed in 1972) was a British hard rock band featuring singer Frank Aiello (from Truth), guitarist Dave Ball (from Procol Harum), bassist Dennis Ball (formerly with Long John Baldry), and drummer Cozy Powell (formerly with Jeff Beck).