Maybe you all know that Mary-Kate and Ashley Olsen, Tia and Tamera Mowry or Joel and Benji Madden, but did you know that Alanis Morissette is twin?

Believe it or not, there are many celebrities that have grown up with a special relationship in their lives, with a twin on their shoulders, including Scarlett Johansson, Vin Diesel, Ashton Kutcher and Gisele Bundchen.

Plus, did you know that the star of "The Wanted", Siva Kaneswaran has an identical brother? Madness or not?

Gisele and Patricia Bundchen

Patricia, may not be supermodel, but of course is proud of her twin star Victoria's Secret. They have grown up with four sisters: Raquel, Graziela, Gabriela and Rafaela.

Scarlett & Hunter Johansson

Scarlett has a twin brother, Hunter, who has stayed with his sister in "Manny & Lo". Also, he has been one of President Obama's campaign representatives.

Ashton and Michael Kutcher (on the left of the photo)

It's true! Ashton has a twin brother, who lives in the same house with her. Michael was diagnosed at an early age by a spinal cord complication and at the age of 13 became a transplant. "Ashton has never abandoned me," Michael said recently to "People." "He has shown me the true love that a brother can have."

Aaron and Angel Carter

Aaron, who has a famous brother - Nick of the "Backstreet Boys" - also has a twin sister! "It's like a twin relationship," said Angel. "It's not like you want more or less. Simply, you have more contact with her "

Alanis and Wade Morissette

The 38-year-old singer has a twin brother, Wade, who is a pop-rock Indian musician, a yoga instructor and therapist. The son of Alanis, Ever and Wade have the same second name, Imre.

Jon and Dan Heder

Who does not remember "Napoleon Dynamite"? Well, Jon Heder started it there. His twin brother Dan deals with the rock of visual effects.

Vin Diesel and Paul Vincent

Vin, 45, has a twin brother, Paul, who is a film editor.

Siva and Kumes Kaneswaran

Siva, one of the members of the British boys' band The Wanted, has a twin brother, Kumar, who looks fixed like him. (Left Left, Gambling, Right).

Mary-Kate and Ashley Olsen

Twin 26-year-olds surprise many Full House followers! Now, Mary-Kate and Ashley are quite successful in their fashion business, Elizabeth and James. They are also the eldest sisters of Elizabeth Olsen

Tia and Tamera Mowry

Sister, sister! Tia and Tamera have been part of a TV show since 1990, and today they have reality on their own, "Tia & Tamera."