Once known for their cuter-than-cute take over of the big screen with their acting talents, Mary-Kate and Ashley Olsen are now fully fledged fashion darlings, and we're celebrating their joint 27th birthday by looking back at some of their best style moments.
With their matchy-matchy outfit days long behind them, they're now known not only for their fashion-forward style approach, but for also being the fashion designers behind not one, but two labels: The Row and Elizabeth & James, named in honour of their siblings.
And how to tell them apart? Ashley Olsen's style approach is glamourous and elegant, while Mary-Kate takes more boho style risks by choosing to wear edgy one-off designs.
Many happy returns, Mary-Kate and Ashley! We look forward to many years of stylish turns on the red carpet to come…
WATCH: ELIZABETH OLSEN DISCUSSES HER SISTERS' FASHION SENSE