The dedication was postponed from late August because of Hurricane Irene.
Journalist Roland Martin will be the emcee. Besides /*Obama,*/ speakers will include civil rights leaders Julian Bond, Rep. John Lewis, the /*Rev. Jesse Jackson*/ and members of the King family. Journalist Dan Rather will also speak.
A ceremonial dedication will be held at 11 a.m. on the grounds of the memorial, where the queen of soul will perform.
The towering 30-foot monument is the first dedicated to a black leader on the National Mall.
King stands with his arms crossed, carved from a stone and looking toward the horizon.