When Jammz dropped the powerful Warrior EP in the closing moments of 2016, it showed us a politically-charged emcee with a relentless flow. Opening out 2017, however, he's gone for something a little different. "Who's That Girl?", which has been given some strikingly colourful visuals by Aftr Mdnt above, sees Jammz and Aleisha Lee (the singer behind the stunning Two 0 1 5 EP) go back-and-forth about a suspected infidelity. As with "Final Warning", this one sees Jammz ride a choppy R&G beat perfectly, this time from DJ Q. And while Dizzee's "I Luv U" will always hold a special place in grime's history, "Who's That Girl?" is the heir to the throne for the Snapchat era.