Actors and designers Mary-Kate and Ashley Olsen have been famous since they were babies, but they've gone out of their way to ...

Dylan and Cole, Tia and Tamera, Mary-Kate and Ashley. Famous twins who grew up in the 1990s were destined to have more than their fair share of adorable matching moments. The Olsens, who turn 39 on ...

The Olsen twins, Mary-Kate and Ashley, made a rare red carpet appearance together as they prepared to take home a coveted ...

In celebration of the sisters' 39th birthday, here's a look back at at some of their cutest lookalike moments from years past Alexandra Schonfeld is a features writer at PEOPLE. She has been working ...