The Bishop of Elphin says churches are not concert venues or disco settings.
It's after a Nathan Carter concert, planned for St Joseph's Church in Boyle in December, was cancelled.
It's understood the new parish priest, Fr John Gannon, objects to such concerts in churches.
Nathan Carter says he's 'extremely disappointed' it can't go ahead and anyone who bought tickets will be fully refunded.
Bishop Kevin Doran says the diocese has a written policy for concerts in churches.