Choosing what to go as for Halloween can be such a huge decision but imagine how much harder it would be if there was a possibility you were going to get papped too!
Well celebs have that worry so they have to make sure their outfits are on point which is why many of them choose to go as each other- as in many celebs decide to go as other celebs.
Miley Cyrus, Kim Kardashian are all guilty of this but pulled it off in the best way possible.
Here are the top 18 times celebs have dressed as other celebs and looked spot on.
P.Diddy as Prince
The hip hop singer fancied a change of look and decided to go as the slightly eccentric Prince.