Occasionally, celebrities turn to other celebs for their Halloween costume inspiration. See Paris Hilton transform into Britney Spears, Beyoncé into Toni Braxton and oh, so many Marilyn Monroe impersonations — plus many other times when stars dressed up as other A-listers.

You've got mere hours left to figure out your spooky-season fit. Fortunately, we've got a list of last-minute Halloween costumes (and a case of serious brainrot.)