Every once in a while, an A-lister steps out in an ensemble so jaw-dropping that it becomes a part of fashion history — and not always for the right reasons.

From the spectacularly good to the frighteningly bad, we've rounded up 10 celebrity looks that have become iconic. While you'll no doubt recall each outfit in vivid detail, can you name the designer who created it? Put your best Louboutin-clad foot forward and challenge your fashion knowledge with this fun quiz.