The fashion designer and former child star was spotted on a farm in casual attire in the Hamptons Sunday Mary-Kate Olsen ...

On a July 1 walk through the Hamptons, Mary-Kate Olsen asked me to reconsider everything I thought I knew about the elite ...

Mary-Kate Olsen—who, along with twin sister Ashley Olsen—prefers to stay out of the public eye, stepped out for a casual ...

Mary-Kate Olsen was spotted in the Hamptons rocking a dressed-down look featuring a graphic tee, sweatpants and sandals ...

Fashion designer and former child star Mary-Kate Olsen is apparently summering in the Hamptons, and she's doing so in the ...

'Full House' Star Says Mary-Kate and Ashley Olsen Not Returning for 'Fuller House' was a 'Missed Opportunity' originally ...

Olsen took her afternoon stroll in an uncharacteristically high-low outfit—one that reformatted her label's flip-flops and ...

Mary-Kate Olsen demonstrated exactly where The Row’s flip-flops should be worn: on a lavender-scented grocery run in the ...

It was during their Full House days that little Mary-Kate and Ashley Olsen met Sister, Sister ’s Tia and Tamera Mowry.

It’s not what you wear, it’s how you wear it. Amid the ever-gaudier displays of wealth among the moneyed elite of New York, ...

Tia Mowry recalled visiting the 'Full House' set with twin sister Tamera and babysitting stars Mary-Kate and Ashley Olsen: ...

In celebration of the sisters' 39th birthday, here's a look back at at some of the cutest lookalike moments from their early career. See all the photos that had them singing "I am the cute one, she's ...