Check out the eccentric style of the Olsen sisters, who complete 27 yearsOversized pieces, many overlaps and mix of textures looks the part of Mary-Kate and Ashley, who have birthdays on Thursday, 13The style of the sisters Mary-Kate and Ashley Olsen evolved much since the twins began to make success on American TV. Over time, the looks juveniles were giving way to a more adult. After the Olsen decided to abandon the career of actress and dive into the world of fashion - with labels The Row and Elizabeth and James - their style became even more eccentric.