Do not confuse Wiccans with Satanism. They are very different. They are usually very tolerant and consider their religion older than Christianity. The most violent and dangerous are those who call themselves Satanists. This phenomenon is capturing young minds and hearts.
Many bands play up Satanic themes to attract a crowd and to taunt authority.
Sadly some kids are drawn in deeply and their lives are destroyed before they realize that the worship of Satan is not just a game. You may have heard of Marilyn Manson. Satanism is a relatively new invention that is most basically simply a reversal of all ideas and values that are Christian. Those who are Christian, who are following after the Lord Jesus Christ, are trading the richness of a knowing God for empty promises and they risk demonic deception when they delve into these practices. None of the activities I have just mentioned have ANY place in our lives.