So this is the New Year: Like the "Y2K-type bug" that hit thousands of Microsoft Zune players as the ball dropped in Times Square, the idea of a track teaming Eminem with Dr. Dre and 50 Cent feels, well, strangely familiar. And, speaking of balls, here's Slim Shady talking about his again. We actually heard a portion of this song last month, when it was called "Number One" and showed up on Big Mike and DJ Neptune's 4th Quarter Pressure Pt. 2 mixtape. Back then, the rapping was all Marshall Mathers, with Dre limited to manning the knobs (um, nullus?) and no Mr. Cent in sight.This time the rubber-grabbing party hook isn't any different-- catchy, if not exactly special-- and Eminem's colorfully juvenile gross-out rhymes are still enjoyable as far as they go. Dre's production doesn't have the glinting club-rap minimalism of his work on new 50 Cent single "I Get It In", synths and keyboards instead bubbling like VIP-room champagne over a relaxed midtempo beat. And it's good to hear Dre's deliberate boom again, seriously. But did he have to bring up something as forever 1990s-linked as Waco? 50's King Kong, and he doesn't "give a fuck"... obviously. Still, some people will probably say they really like this, a prospect that almost makes me feel young again. (via OnSMASH)MP3:> Eminem [ft. Dr. Dre and 50 Cent]: "Crack a Bottle"[apparently from Relapse; forthcoming on Interscope]