President Obama, Oprah And Others Join For The 50th Anniversary Of The March on Washington

Oprah Winfrey, Jamie Foxx and Forest Whitaker are among the celebrities joining three presidents this week to mark the 50th anniversary of the March on Washington.

Soledad O'Brien and Hill Harper will host the "Let Freedom Ring" commemoration of Martin Luther King Jr.'s "I Have a Dream speech on Wednesday. President Barack Obama and former presidents Bill Clinton and Jimmy Carter are also joining the tribute at the Lincoln Memorial.

Georgia Rep. John Lewis, who spoke at the 1963 March on Washington, will speak at this year's march, along with Winfrey, Foxx and Whitaker.

This past Sunday, NBC aired the 1963 "Meet the Press" interview with Martin Luther Kin Jr. in honor of 50th anniversary. It still available to view online, click here to watch.

Musicians including LeAnn Rimes and BeBe Winans are scheduled to perform.