Is this legal?

I was talking to a friend the other day about how we use powerpoint for our sunday worship (while i like keynote better as a whole, the in-show interface for PP is better). Anyways, i have all of our songs in individual files and was thinking about putting them up on this site for people to download and use if they wanted. We use a really simple blacak background with white text on all of our slides so I think they could be really useful for people, especially if they needed a song quickly in an “emergency.”

The only question I have: Does this break some kind of copyright laws? Is this legal?

Any thoughts?