How to Preach without being Preachy:
Do:
Tell Stories
"Frankie and Johnny were lovers"
Explore Failures
"root-a-toot-toot three times she shoot"
Do highlight confusions
"Johnny loved another woman"
Explain what is going on
"Frankie was jealous. And Johnny was a liar"
Don't:
say "God says." Look - it's a song.
say "I do things right" Have you ever been jealous?
say "Don't do this." If people have to be told not to murder, they have a problem.