First Lady Michelle Obama will make a return visit to The Late Show with Stephen Colbert on Tuesday, September 20.

This will mark the first lady’s second appearance the CBS late-night show she first visited on September 28, 2015. This time FLOTUS is plugging “Let Girls Learn,” an initiative launched by the Obamas in March 2015 that brings together the State Department, USAID, the Peace Corps, the Millennium Challenge Corporation and other agencies and programs to help adolescent girls around the world go to school and stay in school.