Everyone likes to make an effort for Halloween, and pregnant celebs are no exception. This year we saw Hilary Duff dressing up as a thief, Jessica Simpson as a mummy (get it??) and Jennifer Garner as a witch. But while not the scariest costume we’re still awarding this year’s best celeb outfit to Beyonce. The Run The World singer opted for a yellow and black striped costume to make the most of her rounder figure! Last month Bey created a stir when she sat down during a TV interview and her bump creased in a bizarre way. Rumours started flying that she’s wearing a “prosthetic bump” for some unknown reason. But with her February due-date fast approaching, those rumours are looking increasingly ridiculous.