UK duo, Chemical Brothers, are back on the scene for the first time in two years. Tom Rowlands and Ed Simons were commissioned by Lorde to contribute to the “Mockingbird part I” soundtrack that boasts commitments from Lorde, Grace Jones, Diplo, Charli XCX and Denver’s own, the Lumineers. Miguel appears on the track, “This Isn’t a Game,” in the highly glossy contribution that lacks the big beat trademark, but the guys traded that in for a more refined approach. Lorde appears on the track for a quick second hushing, “there it is.” Look for “The Hunger Games: Mockingjay, Part 1” set to release November 21.