Every Tuesday Single Minded highlights new tracks hitting stores (or the Web) this week. On Fridays, come back for rarities, remixes, mash-ups and more.

Jay-Z vs. Ghostface, “American Ironman” [Mixtape]
New mixtape mixes up Jay-Z rhymes with Ghostface beats and vice-versa; the result: Jay dons blue & cream Wallabees, complains about shark biters and disses the new Wu-Tang record while Ghostface just makes a bajillion dollars.

Rhymefest, “Man in the Mirror” [Mixtape]
Slept-on MC teams with superstar producer Mark Ronson for an album-length tribute to Michael Jackson. Why is this not called “Repeat It”? Or “MYStory”? Oh, right: because those titles are terrible.

Kanye West feat. John Mayer, “Bittersweet” [Unreleased Track]
Amateur video does an incredible service to an inexplicably nixed Graduation outtake. Kanye himself earns extra points for managing to make Mayer sound like John Oates (it’s a compliment, really).

Various Artists, The Covers Mixtape III [Covers Mixtape]
You’ve sixteen places to start here, but might we recommend the cover of Leonard Cohen’s “So Long, Marianne” by the New York band Ravens & Chimes? S-M heard them play it live on New Year’s Eve and immediately thought their take was gold. Of course, we thought a lot of crazy things New Year’s Eve, most of them involving a bartender’s tolerance for terrible jokes.

Jens Lekman, “Shirin” and “Into Eternity” [Live, Outside a Hotel in Seattle]
In all likelihood the setup was staged, but we’d like to think it was real, and that Jens got angrily thrown out of bed by some French model after making a dry witticism about what “people in Paris are like.”