The 50th Anniversary March on Washington Coalition announced that Soledad O'Brien and Hill Harper will emcee the “Let Freedom Ring” Commemoration and Call to Action event at the Lincoln Memorial on August 28, 2013. Gospel and R&B singer BeBe Winans, along with brothers Marvin and Carvin; singer, musician and Minister Wintley Phipps; country and pop music singer LeAnn Rimes; contemporary Christian singer Natalie Grant; girl group Identity4Pop; and folk singers Peter Yarrow and Paul Stookey, who performed at the March in 1963, are all scheduled to perform at the event to commemorate the historic speech delivered by Dr. Martin Luther King, Jr. in 1963.

Congressman John Lewis, who spoke at the March on Washington in 1963, will be speaking at the event, along with broadcast journalist and actress Oprah Winfrey, Ambassador Andrew Young, Grammy and Academy Award winner Jamie Foxx, Humanist and Academy Award winning actor Forest Whitaker, comedian and motivational speaker Kid President (Robby Novak) and Lynda Johnson Robb, daughter of President Lyndon Baines Johnson. “My father wanted his ‘I Have a Dream’ speech to inspire us to celebrate our common humanity,” said King Center C.E.O. Bernice A. King. “Together with people across America and the world, we will pause to affirm the unity of people of all races, religions and nations, celebrating the anniversary of my father’s speech with moments of reverence, moments of introspection and moments of joy.”

Additionally, President Barack Obama and former Presidents Bill Clinton and Jimmy Carter will deliver remarks and honor Dr. Martin Luther King, Jr.’s call to “Let freedom ring” by ringing bells at 3:00 p.m. EDT, a half-century to the very minute after Dr. King delivered his historic address. Groups across the country will also pause to mark the 50th anniversary of Dr. King’s speech by ringing bells at 3:00 p.m. EDT.

Read it at MLK Dream 50.