R. Kelly is still working on the official follow-up to 2007’s Double Up (which will now go untitled, apparently), but the man knows we can't wait too much longer. So in the meantime we get The Demo Tape, Kelly’s first-ever mix tape. Amid remixes of tracks by The-Dream and Young Money are a few original cuts, including "Tip the Waiter," a song of immediate interest around Vulture HQ, given Kellz's legendary metaphorical prowess. So what does "tipping the waiter" actually involve? A sex-in-a–high-class–restaurant-bathroom fantasy, perhaps? Some overly complicated sexual maneuver only Kelly can successfully execute? A [more insane third thing]?! Turns out it’s not too crazy — Kelly plays a strip-club patron who, dazed by "that ass and Patrón," waits all night for the lady in question to finish her shift; hence, the "waiter." When she's done, he wants "some gratuity, and I don't mean cash." (He means sex.)