Kate Middleton went to a friend's wedding wearing the same coat as another guest

In a nightmarish version of everyone's fashion fear -- that we might wear the same outfit as someone else -- one unlucky woman attended a wedding over the weekend wearing the same coat as the habitually flawless duchess of Cambridge.

Photographers spotted Kate Middleton and her husband, Prince William, at a close friend's wedding in Gloucestershire, England on Saturday.

Middleton sported a blue tweeted Missoni coat she's worn twice before, pairing it with black pumps and a Mulberry clutch.

Another wedding guest -- thought to be named Sarah Baillie -- happened to wear the same coat, accessorizing it with strappy pink heels.

[Vanity Fair, E! News, Daily Mail]