They might be among the best-known twins in the world, having appeared on TV since they were babies.
This Canadian indie band consists of identical twins. The sisters write their songs and play guitar and keyboard.
Dylan and Cole Sprouse rose to fame on a Disney Channel sitcom
Twins Max and Emme have two famous parents: pop star Jennifer Lopez and Latin crooner Marc Anthony.
Brazilian supermodel Gisele Bündchen has a fraternal twin, Patricia, who is her junior by just five minutes
Blond bombshell Scarlett Johansson was on the arm of her handsome twin brother, Hunter, for last year's White House Correspondents' Association Dinner
These twins come from a political family. Their father was a president, and so was their grandfather.
With their brother Barry, they formed one of the '70s' most popular musical groups
These twin brothers tour the world as part of a pop-punk band
These London-born sisters lived what appeared to be a bohemian life
These Cuban-born brothers made names for themselves on the baseball field
These two brothers from Italy became known for their racing skills
Though they spent much of their childhood together, these football players went in different directions as they grew older
The sisters first came to fame as -- sisters
They were twins and also two of America's best-known advice columnists.