But, if you ask me, some of these celebrity lookalikes don't look all that much alike.
For example, I totally get how people could mix up, say, Leighton Meester and Minka Kelly...
...but I've never understood why Amy Adams and Isla Fisher are considered doppelgängers.
Which celebrity doppelgängers do you think don't really look alike? Sound off in the comments for a chance to be featured in a BuzzFeed Community post.