Happy Birthday, Ashley and Mary-Kate Olsen!Related: Birthday Flashback, Ashley Olsen, Diddy, Mary-Kate Olsen
- Photo: Fitzroy Barrett/Retna Ltd.4 of 23
Notable Events: The Olsens are as cute as a button. They dress alike, smile from ear to ear and put their arms around each other. How could America not fall in love with this set of twins?
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