First and foremost:
System of a down - entire song library
Enter shikari - their old stuff circa 2005
DnB:
Spor
Noisia
Konflict
Hazard
Roni size
UNCZ
Old skool hip hop:
Nas
NWA
2pac
Fugees
Wu Tan
Dre
Snoop
Redman
Nate dogg
Cyprus hill
Public enemy
M.O.P
New crap:
Iggy azalea (but to be fair I've been listening to her for years)
Alternative:
James brown
Stevie wonder
Queen
Plus other similar stuff, but I listen to way too much system of a down. I don't know what it is, they just switch me on like no other band.