Celebrity Twins: 23 Stars You Didn't Know Were Twins (PHOTOS)

You all know about Mary-Kate and Ashley Olsen, Tia and Tamera Mowry and Joel and Benji Madden, but did you realize that Alanis Morissette was a twin?

Believe it or not, there are over a dozen celebrities who grew up sharing a special connection with a twin of their own, including Scarlett Johansson, Vin Diesel, Ashton Kutcher and Gisele Bundchen.

Plus, did you know that The Wanted's Siva Kaneswaran has an identical brother? Crazy, right?

Check out 23 surprise celebrity twins below:

Gisele and Patricia Bundchen

Surprise Celebrity Twins

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