We've seen celebrities as brides, as maids of honour, and as bridesmaids, but what about just as wedding guests?

With celebrity circles being so big, the stars of the world often find themselves as guests (or as plus ones) at weddings, and most of them have got the guest dress code down to a fine art.

Whether they're in couture for a royal wedding, or in casual slip dresses for a friend's backyard nuptials, these stars have made standing aisle-side look chic.

Here, our favourite-ever celebrity wedding guest moments.