(9 of 16) Star SiblingsWhen it comes to Hollywood, good genes are a must. And every once in a while, one family produces more than one star. From the Simpsons to the Olsens, sisters and brothers are taking over Tinseltown. Here, we feature our favorite sets of star siblings. Mary-Kate and Ashley Olsen Dressed to the nines in Badgley Mischka, the Olsens attend the Costume Institute Gala at the Metropolitan Museum on May 1.
