The Olsen Twins, Mary-Kate & Ashley Olsen, took Late-Night TV by storm in the recent weeks in an effort to promote their new book, Influence. Ashley Olsen appeared on David Letterman, while Mary-Kate Olsen appeared on Conan O'Brian.
Ashley Olsen on David Letterman:
Mary-Kate Olsen on Conan O'Brian:
Written By: Annette