The Washington, DC Martin Luther King, Jr. National Memorial Project Foundation, Inc. announced today that Usher, Ludacris, Wyclef Jean and Talib Kweli will join the all-star lineup for Viacom Presents The Dream Concert  to be held on September 18, 2007 at Radio City Music Hall.

The Foundation also announced that Halle Barry and Morgan Freeman have agreed to join the concert's Host Committee.

The historic lineup will also feature Stevie Wonder, Aretha Franklin, Carlos Santana, John Legend, Bebe and Cece Winans, Jessye Norman, Kenny "Babyface" Edmonds, Robin Thicke, Joss Stone, Miri Ben-Ari and Garth Brooks. The event, co-chaired by Tommy Hilfiger,Russell Simmons, Joel Horowitz, Quincy Jones, David Stern and Edgar Bronfman, Jr., will benefit the building of the Martin Luther King, Jr. National Memorial in DC.

Tickets for The Dream Concert are priced at $150, $250, $500 and $1,000 and are available through TicketMaster phones and outlets and at http://www.ticketmaster.com. Go to http://www.thedreamconcert.com for more information.