This Brit beatmaker's productions ("Cockney Thug") and DJ'ing (Fabric Live 37,with Caspa) helped define early subwoofer-punishing dubstep well before Skrillex made it rage like new metal. But on Songs, rather than go full-on aggro (or even collaborate again with various Dirty Projectors, as on 2010's O.M.G.), dubstep is outweighed by effervescent house, pop, R&B, dancehall, even twostep garage – a style that preceded dubstep – with vocals ready to pop like champagne bubbles. Even when the lowend gets a workout, as on "Asda Car Park" and "Opium," the tone is party-friendly rather than glowering – good news for pop fans, less so for Korn devotees.

Listen To Rusko's "Opium": 

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• Photos: Random Notes

“Tonight's the Night”

The lead cut and title track from this girl group's debut album, "Tonight's the Night" was written by 19-year-old bandmember Shirley Owens, who sings lead, and producer Luther Dixon. The band from Passaic, New Jersey met in high school, first calling themselves the Pequellos. The song's frank thoughts about sexual and emotional surrender was racy for the time, but that didn't stop the Chiffons from cutting a similar version immediately after the original came out. "We were the first female group to write some of our own material," band member Beverly Lee recalls. "We did have some say-so in our writing."