Happy birthday Mary-Kate and Ashley! The Olsen twins turned 25 Monday and to celebrate their milestone we take a look back at some of their most memorable fashion moments.

Having been on television since they were a year old, the former Full House stars are used to being the object of attention. Just like any normal twin children, the Olsens often wore matching outfits when they first starting going to red carpet events, looking doubly cute in striped dresses, huge hats, girly bows and ribbons.

PHOTOS: Look back At 25 Years Of The Olsen Twins’ Unique Style

As they grew up, Mary-Kate and Ashley starting developing their own unique but complimentary styles. Ashley was often more colorful and fun, as Mary-Kate stuck to more dark, baggy looks.

She is following in the famed -- and young footsteps -- of her older siblings.

But who is she?

You can find out after the jump here on RadarOnline.com.