Michelle Obama will deliver the commencement address at Tuskegee University, a historically black university in Alabama. The May 9 event is one of three graduation ceremonies the first lady will speak at this year. Mrs. Obama will also deliver remarks at Oberlin College and King College Prep, a high school in her hometown of Chicago. The White House says Oberlin and King were chosen because of their video submissions to two "commencement challenges" issued by Mrs. Obama last fall. Schools had to show their commitment to college mentoring and helping students get financial aid. Mrs. Obama will speak at Oberlin May 25 and at King College Prep June 9.