How to counter residual JW Programming

I know this is a really late response, but...
What helps me when I have one of their songs stuck in my head is to be creative and just come up with new lyrics to it, whilst skewing the melody a little (ie: repeating a part that is only done once).
For instance, "To whom do we Belong" was one that just kept popping up for me, so I did this to combat it:
To whom do you belong?
To righteousness or to your d***s?
You touch little kids
Then speak on stage,
Protecting them?
You've gone insane!

"You cannot serve two gods"
But Ba'al would approve of you;
Leading innocents to sacrifice,
Then lying to protect the truth.

Hope I helped.