The HeavyTrackerz got together a decade ago, uniting in the youth clubs of Walthamstow over a love of grime and pirate radio. The trio was soon producing and writing for the likes of Jme, Boy Better Know, Wiley and Big Narstie. They went on to achieve major chart success in 2014 with Meridian Dan's "German Whip", which entered the U.K. charts at No. 13. Check out their finest work here, including remixes for Dizzee Rascal and Iggy Azalea.