Guru and DJ Premier. Showbiz and AG. Snoop and Dr. Dre. Sometimes a producer and a rapper are just meant to be—this is the case with Danny Brown and Rustie. The Detroit MC and the British electronic musician have collaborated before, but why they haven’t done a full-length LP together is beyond me. Brown’s court-jester voice and Rustie’s Sega-step beats never bore, and “Attak,” a recently released track off of the latter’s forthcoming Green Language, provides further evidence that this project needs to happen soon. If you’re a fan of the second half of Brown’s Old, you owe it to yourself to listen to this immediately.