It's embarrassing enough when you turn up at a party to find out a friend has been to the exact same store and pilfered your fabulous look (and arrived first leaving you looking like the copycat) - but your pain is nothing compared to the horror that is two celebs working the same designer dress.
The leading ladies then have to spend the next few nights sweating, Googling themselves, and hoping that their red carpet photo is the one that gets a thumbs up and not the dreaded thumbs down in the press.
That or they couldn't give much of a fig. Either way, WE are interested and so we present you with celebrity outfit reruns (and who wore them best):
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