Blood Diamonds, a producer who's worked on tracks like Grimes' "Go," has changed his name to bloodpop (and then maybe, according to Facebook, simply "blood"). But he hasn't completely abandoned the precious gem just yet, as he's now partnered with DJ Dahi under the moniker DiamondDahi for a new song that's a fitting sendoff — "N.M.B.D. (No More Blood Diamonds)." The two have worked together before on Madonna's Rebel Heart cuts "Devil Pray" and "Body Shop," but on this latest collaboration they enlisted rising British rapper Little Simz for a slick, enticingly ominous track. Stream it here.