Grime MC hits back at 'racist scum'
Grime artist to talk at the Oxford Guild on March 7
The grime rapper let rip over the track by his fellow Beats 1 DJ
London MC says 2015 was a great year for grime and underground music
Hart's 'Ride Along 2' co-star Ice Cube oversaw the battle
Grime track covered in front of baffled onlookers
Rapper pops to a house in south London after making an appeal via Twitter
Grime artist begins campaign after performing track before Anthony Joshua fight on Saturday