On Jan. 21 at 6 p.m., The John F. Kennedy Center for the Performing Arts and Georgetown University celebrate the legacy of Dr. Martin Luther King Jr. with a free, ticketed musical tribute, “Let Freedom Ring!” The annual program, featuring Audra McDonald, Brian Stokes Mitchell and the Let Freedom Ring Choir led by Music Director Rev. Nolan Williams Jr., will be held in the Kennedy Center Concert Hall. Free tickets. limit to two per person, will be distributed on a first-come, first-served basis at the entrance to the Hall of Nations, beginning at 4:30 p.m. on the day of the concert. Overflow seating will be available at Millennium Stage North. This performance will also be live streamed on the Kennedy Center Facebook and YouTube pages as well as on kennedy-center.org.