We know, given what happened to former Sen. George Allen after his "macaca" moment in 2006, that Internet video can have a powerful effect on political campaigns. This is the latest big political viral video to hit the Internet. Put together by the Black Eyed Peas' will.i.am, the video is a musical rendering of one of Sen. Barack Obama's speeches, built on his "Yes, we can" theme. It also features celebs Scarlett Johansson, John Legend, Herbie Hancock, Kareem Abdul Jabbar ... and, for some reason, the woman who played Ashley on "The Fresh Prince of Bel-Air." It also has very good production values, but it's worth watching if only because everyone else you know will be watching -- whether anyone will be swayed by it, though, is a whole other question.