Additional personnel: Afrikan Boy, Timbaland.

Audio Mixers: Switch; Mark "Spike" Stent.

Photographers: M.I.A. ; Liz Johnson Artur; Michael Kamber; Janette Beckman.

Even before M.I.A. (Maya Arulpragasam) debuted in 2005 with ARULAR, the blogosphere was already abuzz about her, engaging in the kind of discourse normally reserved for academic dissertations. Whether hailed as a canny postmodern pastiche or dismissed as inauthentic cultural pirating, the music, a lively pan-global mash-up of regional dance music styles, seemed to be emanating simultaneously from every ghetto, favela, and council-flat within earshot. As if to call out her detractors, M.I.A. returns for another shot of explosive, politically charged and globally conscious dance music on her second album, KALA.

Lacking the patchwork quality of the debut, KALA is a more cohesive and polished affair, though it matches its predecessor for shear visceral thrills. Recorded across several different continents, and featuring the production talents of Timbaland, Switch, and Blaqstarr, as well as longstanding collaborator Diplo, the globetrotting beat makers mine sources as varied as funk carioca, Baltimore bounce, and the occasional ludicrously placed sound-effect (a squawking chicken). The gloriously bombastic lead single, "Boyz," kicks off the party with a blaring horn loop, carnival percussion, and a stuttering Bollywood vocal sample, while M.I.A. merrily chants the chorus in her sing-song faux patois. The twittering, beat-heavy "Bird Flu" sounds a bit like what you might expect--jagged beats create syncopated poly-rhythms, while birds chirp feverishly against Arulpragasam's bratty invective. But the irreverent cultural re-appropriation doesn't stop at her borrowing from the third world; clever nods to the Clash, New Order, and even Jonathan Richman appear in unexpected and cheeky combinations, offering further proof that M.I.A.'s potent cross-cultural grab bag is as sonically audacious as ever.