Showtime has tapped talk-show host Montel Williams to emcee American Candidate. Debuting Aug. 1, the 10-episode reality series will follow mock-presidential hopefuls as they "campaign" for the Oval Office. The winner gets $200,000 and 15 minutes alone with Monica Lewinsky. In other news, George Lopez has been invited back to host the 2004 Latin Grammys, airing Sept. 1 on CBS.