if you have issues, then it is simple...

As there is nothing to believe, there are no such thing as believers. Hence, anybody can sing anything...

For instance, I did that old Stan Crowther classic The Vicar and the Frog the other night. I changed it slightly to call it The Priest and the Frog, to make it a) topical and b) factual...

Ok, not a believer song, more a song about believers...

In a free society you can sing about anything, superstition included. And the best bit is, blasphemy is a victimless crime.