Next week's No. 1 on the Billboard 200 albums seems certain to be Bruno Mars' "Unorthodox Jukebox," thanks to some unorthodox sale pricing by Amazon MP3.

As reported on Wednesday, the set was offered for a one-day-only price of $1.99 on Feb. 26. Sources indicate that the sale price will push Mars to No. 1 on next week's chart, with perhaps around 75,000 to 80,000 copies sold by the end of the tracking week on Sunday, March 3.

A number of other titles were also priced for $1.99 that day, including Macklemore & Ryan Lewis' "The Heist," which could jump back into the top five with around 35,000 to 40,000.

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The new Billboard 200 chart's top 10 will be revealed on the morning of Wednesday, March 6.

Hillsong United, the youth ministry of the Australian Hillsong Church, could earn its first top 10 album with its newly-released "Zion." Industry forecasters suggest that the set may sell around 35,000.

Super group Atoms of Peace seems destined for a top 10 bow, as its "Amok" set may sell around 30,000 copies. The act consists of Radiohead's Thom Yorke, producer Nigel Godrich, Red Hot Chili Peppers' Flea, drummer Joey Waronker and percussionist Mauro Refosco.

Also due for a possible top 10 jump is the "Les Miserables" soundtrack, after the film won three Academy Awards on Sunday (Feb. 24) and the cast took the stage for a live performance of the movie’s music. The set spent a week at No. 1 on the Billboard 200 in January. It ranked at No. 35 this past week.