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.

Sia, “Buttons” [Official Site]
No matter how many quirky little pop songs she writes, Sia will always be known as “the woman who did that song from the last episode of Six Feet Under.” We probably didn’t help matters writing that.

Kate Nash, “Pumpkin Soup” [MySpace]
Stop us if you think you’ve heard this one before: foul-mouthed female singer from the U.K. writes ill-tempered breakup songs and generates a rabid fanbase via MySpace. You were supposed to stop us.

Marah, “Angels of Destruction” [MySpace]
More disciplined roots rock from Philly-to-Brooklyn quintet makes a quiet consistency seem like a quality to be desired.

Rev. Organdrum, “Honky Tonk” [MySpace]
Coming live and direct from your college years, it’s the return of the Reverend Horton Heat. G. Love, Bran Van 3000 and Soul Coughing will be paying very careful attention to the first week sales.

Various Artists, Juno Soundtrack [Official Site]
Packed to the gills with songs by the New York duo the Moldy Peaches, which are funny and disarming the first time through, but a little too precious, overwritten and calculated the next time. Kind of like a certain movie we know.