I know it's really specific but please let me know if there are and christian performing arts boarding schools anywhere in the US.
If you limit yourself by insisting that they're Christian, the list is going to be very small. As a performer you're going to have to get used to mixing with all sorts of people - all races, religions, atheists, agnostics - all types. So it would make sense to go to an open-minded school as well, wouldn't it? I don't understand why a school would have to be just Christian anyway. You can go to a nearby church if you really want to, and pray whenever you feel the need. Having a label on the school's prospectus saying 'Christian' means nothing really.