It's been four years since we last heard from hip-hop's Real Slim Shady, a.k.a., Eminem. But according to 50 Cent, the man born Marshall Mathers is "working" on his long-awaited follow-up to 2004's Encore -- but there's just one problem: Mathers isn't satisfied with the new material.

Get ready for round two: Just one year after hip-hop titans Kanye West's and 50 Cent's records -- Graduation and Curtis, respectively -- battled head-to-head in an album sales war (Fifty lost in a landslide) the G-Unit rapper has called for a rematch.

Setting a somber tone for the week, a local Baltimore hero fell unexpectedly, but DJ K-Swift's influence lives on. 50 Cent, on the other lighter hand, has no interest in influencing your late-night munchies, as rap's big bully sued Taco Bell for essentially having a sense of humor.

Fitting that we ran a story yesterday regarding Dr. Dre's continued toiling on The Detox, as his protégé 50 Cent (real name: Curtis Jackson) is now -- shockingly -- in the headlines.

Here's a rundown of what's available online and in record stores this week. Click each album title to read Spin's review:

Alkaline Trio, Agony & Irony: Emo's somber pros open the shade and peer outside.