Dre track appears online

WAITING FOR THE DOCTOR TO ARRIVE: An apparently unmastered version of “Under Pressure," a Jay-Z collaboration purportedly from Dr. Dre's long-delayed Detox, showed up yesterday on New Music Cartel, RollingStone.com reported. In his first vocal appearance since Eminem's "Crack a Bottle," Dre quotes directly from Kraftwerk's "Trans-Europe Express" and makes reference to both Detox and Em's Relapse, while Jay-Z disses of Tiger Woods and Gilbert Arenas, suggesting that these verses were recorded around six months ago. In this form, "Under Pressure" has no chorus to speak of and clocks in at under 2:30, but for what it’s worth, you can hear it at Nah Right. (6/17a)