Ghetto tech was supposed to be Detroit's next great musical export after techno entered the marketplace in the mid-'80s. Sadly, ghetto tech -- aka booty, a speedy amalgam of Miami bass, pitched-up Detroit-centric electro and ridiculously crude sexaholism -- didn't blow up the way some strip-joint aficionados and exotic dancers had hoped. Regardless, some of the scene's artists still carry its raunchy torch. Ann Arbor, Michigan's wunderkind Disco D (Dave Shayman to his banker) -- best known for classics like "Shake Dem Titties," "Jiggy/Throw That Thang" and "Time Space Scrilla" -- spins ass-fixated, turntablist-tricky DJ sets to put a bounce in your derriere. Mr. D's recent A Night at the Booty Bar hedonistically tears through thirty tracks, including some duets with dirty-minded conspirators. (D's collaboration with the profane Princess Superstar, "Fuck Me on the Dance Floor," is a juicy highlight.) Sleazy does it, people.