If you consider brushing your teeth part of foreplay, chances are you're familiar with "business time" — the intense two-minute form of lovemaking made famous by New Zealand parody band Flight of the Conchords. Any fan of the HBO series will attest to its unmatchable diversity: Bret (pronounced "Brit") and Jemaine (sounds like "Jamaine") hop between tunes inspired by everything from mainstream rap and David Bowie to Hall & Oates and Lord of the Rings. When the jokes are over, the acoustics are ready, and it's time get serious on stage, the Conchords prove themselves a supremely talented pair.