Actresses, designers, fashion icons: is there anything that Mary-Kate and Ashley Olsen can't do? The pint-sized fashion darlings not only own a global media empire, which has netted them a combined personal fortune of a whopping £68 million, but they are now established designers too, launching not one but two clothing lines: The Row, with its couture-like tailoring, and Elizabeth and James, a more contemporary brand. Both girls are revered in fashion circles for their personal style (famously, neither uses a stylist). There's Mary-Kate, with her eccentric, bohemian, rule-breaking look complete with hippy hair and kooky jewellery; and Ashley, the more polished and groomed of the two, who opts for smart, tailored clothes and evening dresses that ooze sophistication. Who's your favourite? Let's take a closer look and remember, Mary-Kate is always on the left, Ashley on the right...

By Fiona Raisbeck