Michelle Obama to guest on Colbert's 'Late Show' on Sept. 28

New York - First lady Michelle Obama is set to pay a visit to "The Late Show With Stephen Colbert." Also read: Rihanna can't help but break the rules CBS says she'll be a guest on the show's Sept. 28 edition. Mrs. Obama will highlight "Let Girls Learn," which aims to help the more than 62 million girls around the world attend school and complete their educations. She also will address her "Reach Higher" initiative, an effort to inspire students to take charge of their future by completing their higher education. "The Late Show With Stephen Colbert" airs weeknights on CBS at 11:35 p.m. EDT. - AP