The clip shows him singing, dancing and clapping along to the 1980s hit 'Mamma Maria', by the Italian group Ricchi e Poveri. The happy couple and wedding guests soon join in.
The video has pulled in almost one million viewers and is one of the website's most-watched clips this week.
One viewer commented: "I want to get to know Father Bruno...he's a good example of the church!", while another said: "I'm not much of a Catholic but I respect him and I bet he knows how to engage with his followers."
Watch the video: