Derrick Green is frontman of the metal band Sepultura. He has been vegetarian since he was 15, after hearing about what happens in slaughterhouses and how they're a 'factory of death'. The music video for the single 'Convicted in Life' contains footage of animal abuse. 'I think animal rights is important because you can really tell how civilized a society is by the way that it treats its animals—everything is connected. And that compassion is very important. I mean, even at a young age, it’s important to learn to have compassion for other things, especially living organisms. You have to have compassion for animals, because they’re a part of us as well. So it’s really important to have that respect and knowledge about other animals and other people as well.'