Stars -- times two! From beloved blonde duo Mary-Kate and Ashley Olsen, to Scarlett Johansson and her hunky twin brother, Hunter, see which famous stars have the twin chromosome!
Mary-Kate and Ashley Olsen
Nothing says '90s like the Olsen twins! Mary-Kate and Ashley Olsen rose to fame as the thumbs-up giving beloved Michelle Tanner in the family sitcom Full House. The blonde sisters went on create their own empire, Dualstar, and eventually, multiple fashion lines including contemporary labels The Row and Elizabeth & James, named after their siblings Elizabeth and James "Trent" Olsen.