I don't think cantors are exclusively jewish.
This is what I got from wikipedia:
* The Latin word for singer, e.g. the main singer of a cantus
* Hazzan, in Judaism, the English name for a professional singer who leads prayer services (Kantor is a frequently noted jewish patronym)
* Cantor (church), an ecclesiastical officer leading liturgical music in several branches of the Christian Church
The only one with a K is the jew. I felt the first game had some interesting undertones, so whaen i read this news I immediately thought of the jewish singers, Kantors.