Viacom President and Chief Executive Officer Philippe Dauman to Speak at the Goldman Sachs Communacopia XVI Conference

NEW YORK.- Viacom Inc. (NYSE: VIA and VIA.B) today announced that Philippe Dauman, President and Chief Executive Officer of Viacom, will speak at the Goldman Sachs Communacopia XVI Conference on Tuesday, September 18, 2007 at approximately 10:25 a.m. (ET). A live webcast of Mr. Dauman’s question and answer session will be available to the general public through a link on the Investor Relations homepage of Viacom’s website, www.viacom.com. A replay of the audio webcast will be available in the “Events / Webcasts” section of the site.