"Back from the dead!" crows Pimp C in the opening moments of the sixth studio album by these Texas crack–rap pioneers. It's an eerie moment — Pimp C was found dead in an L.A. hotel in December 2007 — but thankfully, Pimp's surviving partner, Bun B, doesn't wallow in the macabre. Instead, we get UGK basics: songs about drugs, sex and flossing, flavored with thudding, no–nonsense beats. Cuts like the sulfurous "Da Game Been Good to Me" remind us what rap lost with Pimp C's...