To honor the 50th anniversary of the March on Washington For Jobs and Freedom, people have marched from Capitol Hill to the Lincoln Memorial for special celebrations in Washington DC. On Aug. 28, 1963, Martin Luther King Jr. delivered his unforgettable "I Have a Dream" speech at the iconic civil rights demonstration. During today's Let Freedom Ring Commemoration and Call to Action event, President Barack Obama spoke at the same time that MLK Jr. spoke 50 years ago, and there was an impressive list of additional speakers that included former President Bill Clinton, former President Jimmy Carter, and Oprah Winfrey. Jamie Foxx also addressed the crowds, while Leann Rimes performed "Amazing Grace." Take a look at all the action in Washington DC!