Barack Obama with Oprah Winfrey Live on Ustream.TV

We know that when Oprah Winfrey gets behind a book, the book will shoot to the top of best seller lists, but will her support for Presidential candidate Barack Obama have the same influence on voters? That seems to be the case, just look at Sunday's planned political rally which was originally scheduled to be held at an 18,000-seat arena, but has been moved to the 80,000-seat Williams-Brice football stadium at the University of South Carolina due to Oprah's star power and huge fan base. With her help, Democratic White House hopeful Senator Barack Obama will probably continue to fill stadiums across the country in 2008, perhaps near you, but you can watch tomorrow's event online as it is streamed LIVE on Ustream.TV

Senator Barack Obama, his wife Michelle and special guest Oprah Winfrey will speak to thousands of Obama campaign supporters Sunday, December 9, starting at 12:30 p.m. EST