If someone could help, I'll give props. ^.^

So, I'm auditioning for a musical and need to perform a song. If I want, I can bring a karaoke version of the song for me to sing with.
Problem is, I don't know how to burn the song onto a CD with instrumental only! I have the song on my iPod, but that's about it.
Is there perhaps a program on iTunes I could mess around with so there's no people singing?
Thanks so much for your consideration and time and help! I will give the most helpful person two apoyar too.