These two girls are the youngest self-made millionaires in the United States as they earned net wealth before they were just nine! Olsen Twins are beautiful girls Ashley Fuller and Mary-Kate, who were born on June 13, 1986 in Los Angeles, California. Ashley is "an older" one and is a bit taller than Mary-Kate. The girls were cast for the role of Michelle in a comedy Full House when they hardly reached nine months. Olsen sisters were acting one and the same role but in turn, it was made in order not to break the child labor laws. Actually, the viewers did not know that Mary Kate Ashley Olsen is not a single girl but two separate girls, though not so different. The twins stayed with the show for eight years and managed to act in some direct-to-disc movies including To Grandmother's Hose We Go. By the end of Full House sisters Olsen established their pop empire. They were seen everywhere: on cards, notepads, books, magazines, videos. They launched their own clothing line Dualstar, which is popular not just in the USA but worldwide, too. Mary-Kate and Ashley were even prototypes for dolls of Matter from 2000 to 2005. The sisters were so involved in show business that they decided to drop their study and quit New York University. As for Mary-Kate, she was very busy with modeling and is considered to be a fashion icon. Girl's clothing style is so chic and glamour that they are always imitated by teens and not only. However, Olsen Twins are criticized by PETA for wearing fur and for using it in their clothing line.