1. It won't please God: I have had Christ in me, and that, from the date I received Christ, the spirit now lives in me. Some verses from the Bible states that our body is a temple of God and we must glorify Him.
2. All those things are of this world: Colosians 3 and Romans 12, focus on the things above where Christ dwells, not on these things on earth. We are new creation, 2 Corinthians 5.
I think this two will summarize a lot reasons I have. You can give/tell me some points regarding this issue, that would be appreciated! :)
Yesterday, I heard a song, the voice is very familair to me. It was Don Moen, narrating, before he started to sing. I turned the volume up and said to myself "ops, I really miss his songs". The words are clear and I am pretty sure God will be pleased when He hear those songs.