Halloween is the perfect holiday for the fashion set. Encouraging outrageous ensembles and over-the-top dressing, it’s just the excuse to break out your rhinestone Louboutins.

That said, picking the right costume and executing it flawlessly are of the utmost importance. Most fashion followers are savvy enough to know prepackaged looks that come in plastic bags are never a wise decision. But dressing as fashion’s top stars is also risky, since no one will get the reference unless you go all the way.

We’ve compiled some outrageous and amazing costume ideas for the fashion-set. But be warned: These need a lot of prep-work.