WATCH LIVE: Obama Speaks On The 50th Anniversary Of Martin Luther King Jr.'s 'I Have A Dream' Speech

President Barack Obama is preparing to deliver remarks at the "Let Freedom Ring" ceremony, which commemorates the 50th anniversary of the "March on Washington" and Martin Luther King, Jr.'s "I Have A Dream" speech.

Obama joins a list of speakers that includes former Presidents Bill Clinton and Jimmy Carter, as well as Rep. John Lewis, the only living speaker from the 1963 event at the 50th anniversary.

Obama's speech as the first African-American president will also come five years to the day after he accepted the Democratic Party's nomination for president.

Obama's remarks are expected to begin at 2:45 p.m. ET. You can watch live below, and check back here for updates: