The Times reported that Bishop Antonio Staglianò of Noto in Sicily had begun including pop songs in his homily at mass.
Speaking in the Italian newspaper, La Repubblica, the bishop said he first began to use the technique a year ago when he noticed younger people in the congregation were distracted during the service.
He said: "Suddenly I had got everyone's attention. I was surprised by the effects pop songs can have."
The video was posted on YouTube after he burst into song in the town of Scicli. His internet fame follows after a nun, Sister Cristina Succia, won Italy's version of The Voice last year.
Pope Francis has urged his priests to listen to their congregations and get on the same level as their listeners when they preach. Bishop Staglianò said he was putting the Pope's words into practice when he began signing to the church.
Watch Bishop Staglianò breaking into song here:
