Mr. Smith clutched the mic and strutted center stage. A sampled film score played, but the CD malfunctioned before the 813 rapper could deliver his rhymes. Perfectly timed as if planned (but it wasnt), co-host Mingle Mixx started beat-boxing and Smith responded with an impassioned rendition of his single Indiana Jones, actually making his impromptu, sans backing music, version more engaging than the one he recorded.