I use product for each one. Ashley's hair is much curlier and much darker, but Mary-Kate's is a little bit more coarse." In 2013, Townsend spoke with PEOPLE about collaborating with the pair.

Mary-Kate Olsen was spotted out in the Hamptons, looking casual in an oversized tee and sweatpants while at a local farm on ...

The pony-hair slip-ons are playful, chic, and comfortable. And even though we may not find out, I'm sure Olsen will be wearing them all winter long.

Of the films child stars Mary-Kate and Ashley Olsen starred in throughout their years as actors, How the West Was Fun is an underrated classic that holds up surprisingly well 30 years later.

Although known for their fashion flair, all three Olsen sisters kept it low-key with their outfit choices. Mary-Kate and Ashley, 37, were bundled up against the East Coast chill in dark coats and ...