This is not exactly brand new, but chances are you haven't heard it on a U.S. commercial radio station. It's a fiercely political hip-hop track from the young British MC and filmmaker Plan B. The song decries the demonization of working class kids blamed for the riots that swept across British cities in 2011. It's as seething as any Clash track you can name, and it owes some of its frenzied pacing to rappers like Eminem. But you'll know something distinctive is going on when you hear a clip from the fourth movement of Dmitri Shostakovich's Seventh Symphony right off the top.