Niall Donnelly the groom was egged on by his sister to sing his beautiful bride Jill up the aisle.
Niall Donnelly: 'The whole thing was basically my sister Bronagh's idea, she brought the idea up at the rehearsal 3 days before the wedding. We laughed it off but the lads kinda kept talking about it'.
'We wanted to put a personal stamp on as many parts of our day as we could', Niall told Independent.ie.
Mr Donnelly added, 'Jill had an idea I was gonna do something stupid, she knows me well, but it was a shock to the rest of my friends and family'.
The video has been viewed over 10 million times since it was uploaded to YouTube.