MARY-KATE (L) AND ASHLEY OLSEN "I am the cute one. She's just my sister." Ah, the immortal words of the iconic Olsen twins.

We've watched these famous sisters grow into fashion mavens and multi-millionaires ever since they were adorable babies on "Full House." They've been in the public eye practically since birth, but can you tell Mary-Kate and Ashley Olsen apart? Check out these pictures and see how well you do!