17 Famous Celebrities Who Look Alike ...

They call Katy Perry the "bad twin" or the "porn star" version of Zooey and you'd have to be blind to not see the likeness. Their styles may be poles apart as is their music but that doesn't take away from the fact that they practically look like twins! I love them both but in a way that I love both spicy curry and red velvet cupcake...for very different reasons.

Zoe and Thandie are both exotic, drop dead gorgeous and look like they could have been separated at birth. In case you didn't know,Thandie is half Zimbabwean and half English, while Zoe is half Dominican and half Puerto Rican. Isn't it amazing how two people with such different roots actually look this alike?

I remember wondering why "the Grey's Anatomy guy" looked a bit off the first time I watched Vicky Cristina Barcelona. One Google search and many hits later, I realized that he wasn't the same guy after all. This was yet another case of celebrities who look alike. Add Robert Downey Jr. and they may as well be triplets!

As if it wasn't enough to have one fiery hot Spaniard like Penelope Cruz, we have one more in the form of Paz Vega and here's the thing, they look like clones of each other! I mean look at them, the same gorgeous black hair, the same pretty brown eyes, the same to die for features...how is it even possible? They've got to have common ancestors or something!

Most of the celebrities on this list look similar but with these two, I have tried so hard to tell the difference and I jut can't seem to. Looks like I'm not the only one. Chad Smith has in fact admitted that people come up to him all the time and tell him how funny he is on SNL. He even wore a "I'm Not Will Ferrell" t-shirt while performing on the Tonight Show. Thanks for clearing that up Chad.

Now I'm not complaining at all about these two celebrities who look alike. After all, we can never have too many good looking men, especially of the likes of Chace and Ian. Pretty faces, prettier bodies and piercing blue eyes. Ah!

Tell me Sarah Hyland doesn't look like Mila's little sister! Incidentally, I love both Modern Family and That 70's Show and looks like Sarah's a fan too. She and boyfriend Matt Prokop even dressed up as Jackie and Michael Kelso for a Halloween party. Aww. I'm sure they were a hit!

Looks like Lauren Conrad has a royal look alike in Kate Middleton. If Kate ever happened to get caramel highlights, or Lauren went darker, they'd look like long lost sisters. Of course, Lauren would be the prettier sister while Kate would win every fashion face-off and together, they would rule the world.

What's spookier than a psychotic roomate? A psychotic roomate who looks a lot like you! I didn't even notice it until I saw the red carpet photos for their movie, The Roommate but since then, I haven't been able to get out of my head. Minka and Leighton definitely belong on this list of celebrities who look alike.

One's an an actress, the other is a model and the resemblance is totally uncanny! It's a good thing that Amanda and Gemma aren't sisters because that would be too many "pretty genes" for one family.

Nina Dobrev may have a doppelganger on her hit CW TV show, Vampire Diaries, but she also has one in real life! Just look at the pictures of Victoria Justice and Nina Dobrev side by side, and you won't be able to deny that their features are ridiculously similar! And you won't be the only one who thinks that because many editors of popular magazines have mistaken one for the other!

You can't deny the fact that when you look at Selena Gomez and Lucy Hale, you wonder if they are some sort of long lost sisters. Their luscious brown hair, eyebrows with a slight arch, similar face shape and identical lips! And the similarities don't just stop there, both of them are singers and actresses with similar reputations of sweethearts!

To be honest this is another set of celebrities that I thought were the same people!They have the same skin color, bone structure, hair and other facial features. There is almost no other way to differentiate Amy Adams and Isla Fisher other than their eye color. Other than that, they are facsimiles of each other!

When I first saw the trailer from The Mortal Instruments: City of Bones, for a brief moment I thought Scott Disick had suddenly started an acting career. And even though that moment was brief, I still had a moment of doubt because there are several facial characteristics that they have in common, just take a look!

Atlanta de Cadenet is Hollywood's new hot model and Rachel Bilson is one of the hottest Hollywood actresses to this day, and although they look alike, they are two different people. Their similarities are less intense in comparison to others, but you can still tell where the twin connection came from!

Keira Knightley and Natalie Portman can pass for twins any day! I wouldn't even be surprised if one day they revealed their their secret of being real life twins. Just take a look at them, they have the same body shape, hair, big brown eyes, lips, the similarities are just endless to the point that it's a little scary!

Big bright smiles, dark luscious locks, spider-like eyelashes, these are just some similarities Courteney Cox and Demi Moore share. The resemblance of these two gorgeous ladies is indisputable!

And here's one more for fun:
Ke$ha and John Travolta
LOL!

Like these Celebrities who look alike, I always fantasize that I have a fancy doppelganger or two somewhere out there. Like I said, celebrity lookalikes both amuse and creep me out. Do you agree with this list of celebrities who look alike or do you have better nominations?