The fat, squishy bass blasts on Britney's 2007 "Freakshow" were many listeners' first exposure to the sounds of dubstep, the U.K. style favoring syncopated beats and huge low-end. Now, M.I.A. producer Diplo has put together a dubstep party platter: His jam with Lil Jon ("U Don't Like Me") is positively unhinged, while U.K. producers Benga and Zomby represent for the style's experimental side. Elsewhere, Stenchman's remix of "Burn" by Australian Idol diva Jessica Mauboy posits how dubstep could rescue modern R&B from groove tedium.

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“(We're Not) The Jet Set”

George Jones and Tammy Wynette were still married when they recorded the tongue-in-cheek "(We're Not) The Jet Set." The lyrics, written by Nashville songwriter Bobby Braddock, who also penned Wynette's "D-I-V-O-R-C-E" and Jones' "He Stopped Loving Her Today," make fun of the good life by declaring, "We're not the Jet Set/We're the old Chevrolet set." Braddock recalled that while writing the song, he needed the name of a city that evened out the rhyme he had with "Riviera" and "Missourah." “I got out a Rand McNally atlas," he said. "In the first part are the maps. The last part is an alphabetical listing of cities. I wanted a rustic, small-time sound. I went to the listing for Missouri. And I found 'Festus.' I loved the sound of it."