On Rihanna's new album, "Mad House," the opener, sounds an awful lot like dubstep.

Turns out we can thank London's Chase & Status for that, who produced it as well as a couple of Rated R's other tracks.

Wahey!

And here we thought Britney Spears had the pop/dubstep crossover cornered with 2007's "Freakshow," if in a Miami sub-bass sort of way.

Even the titles are connect-the-dots similar, helpfully.