Wacky wedding entrances have been all the rage these past few years, with brides and grooms showing off their sense of humour all offer the country. But this time it's the guests who steal the show. 

In this video, the happy couple are surprised at their reception as friends and family begin to stand up one by one and serenade the newlyweds with a singing flash mob.

Not only is the performance a pleasant surprise, but their rendition of 'Seasons of Love' from the musical Rent is amazing too.