(sigh) I am too old to be making this list - my wedding was so many years ago.
I should have chosen a song we did play at our wedding, but I don't think we had any dancing at our wedding (I didn't dance much in those days) and I remember no specific songs.
So instead I am choosing a song we might have had at our wedding, had we thought about it, and a song from Mrs Botogol's canon rather than my own, would seem appropriate.
This one perhaps? Mrs B has always liked Edith Piaff, but it took me a long time to appreciate her. This is one of my favourites and would be a good song, I think, for a wedding.