I bumped into Vrotvig - the most devout Christian metal band in Belgium between 1986 and 1991 - reformed in 2013 - filming a music video this morning.
Sam decided to join them and they were great sports, they want to keep him in.
Check them out on Youtube - they are very funny, but beware if you don't get spoofs or don't have a sense of humour about religion, they may not be for you.