15 Amazing Celebrity Halloween Costumes

Blake Lively and Martha Stewart: Cleopatra and Medusa 1 of 16

Celebrities have easy access to awesome (and expensive) costumes and accessories, so it makes sense that they're able to come up with some pretty incredible ideas! As you can see here, Blake Lively and Martha Stewart absolutely nailed it when they dressed as Cleopatra and Medusa.

Click through to see some more great Halloween costumes as worn by the stars!