Mary-Kate and Ashley Olsen turn 30 years old on Monday, and to celebrate their milestone birthday, let's take a look back at our favorite moments with the fashionable twins.
ET first interviewed the duo on the set of Full House, when they were only four years old. Mary-Kate rocked a cute black party dress while Ashley went more casual in a red T-shirt and jeans, and the two got adorably honest when asked what they liked best about being on TV.
After their stint playing Michelle on the beloved sitcom, the twins starred in several successful films together for over a decade. 1995's It Takes Two and 2000's Our Lips Are Sealed are just a few of our favorites.
The twins' last movie together was 2004's New York Minute, in which Gilmore Girls heartthrob Jared Padalecki played a love interest.
While Mary-Kate went on to act solo -- most notably, in Showtime's drug drama Weeds, and most recently, in 2011's Beastly -- the two are now more known for their incredible fashion empire. The two launched their couture brand, The Row, in 2006, and most recently, their less expensive brand, Elizabeth and James. Both ventures are smashing successes.
When it comes to their personal lives, the two have remained notoriously private. Though Mary-Kate has never personally confirmed it, she reportedly married 47-year-old French banker Olivier Sarkozy in an intimate ceremony in New York City last November after dating for three years.
"They just wanted me to finish school (laughs), which I did -- it just took me longer because I balanced work with it -- and I mean, it's all just about being supportive," the Captain America: Civil War actress exclusively told ET in March about her older sisters' advice. "They probably told me things that I didn't listen to that I'd listen to now, because you just have to be able to make your own mistakes."