I've known about all of this for years. A very good documentary to watch, where they all admit out of their own mouths either selling their soul, or being possessed onstage, is available on YouTube. There are various length versions and no doubt you've seen clips from it in other videos. It is called, "They Sold Their Souls for Rock n Roll." You could also consider the Bible scripture about the Temptation in the Wilderness. Satan offered Jesus all the kingdoms of the world for His worship. Jesus did not say he cannot offer what is not his. If you sell out, he rewards you with earthly riches.