Watch the video above to see what surprise the newlyweds', Susanne and Sune Vibæk Svanekier, got from their friends on their wedding day, back in May.
Guests burst out into a surprise rendition of the classic song "One Day More" from "Les Miserables," each standing during the reception to belt out the different parts.
The video is extremely moving!
Well, who doesn’t want a surprise like this on their wedding day?
This wedding flash mob video has totally gone viral and has harnessed quite a lot of hits.