Anyone searching for proof that Hollywood's beauty standards are very, very narrow need only look to the countless celebrity doppelgängers who've appeared on film and television screens.

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These A-list lookalikes could easily pull a 'Parent Trap'-style swap with their celebrity twins.

Sylvester Stallone looks like Pope Gregory IX

You're going to think you're seeing double when you check out these celebrities who look like identical twins.

We all love celebrities and although they are extremely unique, some have a twin sibling!

While many people dream of looking like their favorite celebrities, copying everything from their hairstyles to their wardrobes, a select few are simply born with their features. Some celebrity lookalikes are content with a few of their photos going viral on social media, some make good money on it, but they all prove a simple truth we have to make peace with: we're not that different from each other. At least on the outside!