1. Zooey Deschanel and Katy Perry

There was a long while where I could've sworn these two were the same person. Oops! Granted, that was a few years ago. Their resemblance is incredible! If they were standing next to each other, I'm sure everyone would be confused as to who was who. Maybe Katy should sign on to appear on New Girl! That'd be interesting. These two are definitely one of the celebrity couples who look alike.

2. Amy Adams and Isla Fisher

I'm always getting these two confused! They're both ridiculously beautiful. The only way I could really tell them apart is their eye color! These twins could possibly have a triplet though- Jenna Fischer, or Pam from "The Office"! Those three could easily pass off as sisters.

3. Jennifer Connelly and Demi Moore

Am I the only one who thinks these two could've easily been separated at birth? They look SO alike! I wonder if they've ever noticed it and spoken about it with each other. That'd be pretty awesome.

4. Thandie Newton and Zoe Saldana

These actresses could easily serve as each other's stand-ins. They both have gorgeous mocha skin, long locks, thin frames, and really similar noses. The only easy way to differentiate them is by looking at their jawline! Thandie has more of a square-shaped jaw while Zoe has an oval one!

5. Will Ferrell and Chad Smith

It's kind of freaky how similar these two look. The "Anchorman" actor and Red Hot Chili Peppers drummer both have similar shaped brows, eyes, noses, mouths, and jawlines! It's no surprise that they often get confused for one another. A good way to tell them apart is Smith's many freckles!

6. Javier Bardem and Jeffrey Dean Morgan

These two men are incredibly handsome! They have similar dark hair, soft eyes, and scruffy beards! Let's not forget about those deep dimples! The two could easily pass off as brothers. One way to tell them apart is their accents! Bardem speaks with a heavy Spanish accent while Morgan is from Seattle, Washington.

7. Victoria Justice and Nina Dobrev

Victoria Justice and Nina Dobrev have been getting confused for one another for quite some time now! The two have similar eyes, noses, teeth, and face shapes. Victoria Justice doesn't mind being mistaken for Nina though (who would?). "It's been happening forever!" she's said. "I think it's flattering. She's so pretty, so it's very nice to be able to say that! I get the Nina thing a lot." I wonder if the two have ever met!

Well, there you have it! These are just seven out of many pairs of celeb lookalikes. Who knew so many Hollywood celebs had doppelgangers? It's awesome. Who do you think look alike the most? Do you know any pairs that should have made the list?