If the name Jason Derulo doesn't sound like any hitmaker you know, then you're not one of the 15 million MySpace listeners the 20-year-old R&B chart-crusher claims. And you must not own a radio.

Jason Derulo's "Whatcha Say" track, produced by J.R Rotem, samples (and by "samples," I mean, "uses the entire refrain of") Imogen Heap's "Hide And Seek," but Jason pulled from his own brother's adulterous confessions when he penned the song. While it's unclear how Jason Derulo's brother feels about this kind of publicity, his little brother's a star -- "Whatcha Say" hit the number 1 spot on the iTunes Top 200 Songs at the end of September.

Thanks in part to some label signage by Kara DioGuardi (they rode to the VMAs together) we can expect a debut album from Jason soon enough. Get a hint of Jason Derulo's musical background on his MySpace with "Strobe Light," which you can expect to hear in the MTV movie Turn The Beat Around come 2010.

Watch Jason Derulo with Beluga Heights signee IYAZ on the VMA red carpet, and watch the source of his "Whatcha Say" inspiration -- Imogen Heap's "Hide And Seek" video. And watch for more Jason Derulo coming soon!