Apart from not wearing white, are there any other rules wedding guests need to adhere to when choosing an outfit?
A woman has been slammed online over her choice of outfit for her friend's wedding.
She shared an image of the dress on Facebook and asked if it was appropriate for the ceremony.
She wrote: "Have to attend a wedding in about three weeks. Is this too much for a wedding? Or is it possibly appropriate?"
The photo of the tight, black dress with exposed sides made it onto a wedding shaming group, where many people were horrified that the woman would even consider wearing it to a wedding.
Most of the commenters were concerned that the revealing bodycon dress would upstage bride.