Bangladesh's vibrant, ballistic hip-hop production has built mega-hits since the sexy, skittering bump of Ludacris' “What's Your Fantasy”. Every track here bangs: The clap-clap drums of Ke$ha's “Sleazy”, the spasmic percussion and buzzy synth of Beyoncé's “Video Phone” and the hypnotic thump of Lil Wayne's “A Milli” all owe their success to the producer's ear for irresistible beats.