You know the old folk tale that everyone has a doppelgänger in the world? This is also true when it comes to the Hollywood elite.

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It’s wild how much two totally different stars can actually look alike, from Minka Kelly and Leighton Meester to Ed Helms and Jason Sudeikis. Maybe it’s a similar facial structure, haircut or smile: When you put some celebs side by side, chances are you’ll find yourself taking a second look to tell who is who.

Below, we’ve rounded up 50 strikingly similar celebrity duos we often mistake for one another.