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.

Work To Begin on MLK Memorial

WASHINGTON (AP) - The National Park Service says it will begin work next week to remove a disputed inscription from the Martin Luther King Jr. Memorial.

Contractors will start working on Monday to build scaffolding and get equipment in place. Then, on July 29, the sculptor of the memorial, Lei Yixin, will arrive. He will carve grooves over the lettering to match existing marks in the sculpture.

The inscription is a paraphrase from King's "Drum Major" speech. It reads, "I was a drum major for justice, peace and righteousness."

Critics including the poet Maya Angelou have argued that the quotation was taken out of context and makes King sound arrogant.

The park service says the quotation will be removed in time for the 50th anniversary of the March on Washington on Aug. 28.