Mary-Kate and Ashley Olsen  have spent almost three decades in the Hollywood spotlight, and this week, it was announced that Nickelodeon will air the Olsens' series , TV movies, and specials. The 28-year-old twins were cast as Michelle Tanner at just 9 months old, and this week, they weighed in on what they think of the upcoming Full House reboot , Fuller House.
In their early years, Mary-Kate and Ashley were known for their cute matching outfits, hilarious facial expressions , and many TV and movie roles. Since then, the twins have evolved from an adorable onscreen duo to popular designers. For a fun look back at their long careers, find out how many Mary-Kate and Ashley movies you've seen , then take a trip down memory lane with the ultimate MK-and-A time machine!