I would contact PRS you can find the info on the web. You may have to pay a small yearly fee to them, but it would depend on the songs that you sing. Some songs do not come under the performing rights scheme as they are too old and are what they call stock records but some modern ones will. Also if you are videoing any of these concerts you will need a licence for that which costs approximately �12 (which is for the each church you perform in) hope this helps.