No need to have your guard up the next time you pass a guy on the street reciting rhymes to an audience of one—that being himself. While most street mystics don't rap as good or dress as sharp as Mos Def, the scene might be a memorable one like watching Mos lose himself in this flurry of darts: My hands keep clean, even off the books or a flip of the quasi-chorous about rapping endlessly, As long as I'm alive I'ma never stay rappin'/Sike! Super-nice. Walking with a drunken gait, he barely seems to get anywhere while his rhymes cover more ground with each verse a tangent of the other, over the smokey horn section of the Ski Beatz production. Mos Def's poetry in motion is from the forthcoming Ski Beatz album, 24 Hour Karate School due this fall.