I usually avoid these questions... because I really listen to just about everything... I can't even get into specifics or this thread will be 8 pages long of the music I listen to...
So to be concise, I listen to everything from Norwegian black metal (Mayhem, Emperor, etc...), to underground hiphop (Dr. Octagon, Del The Funky Homosapien, etc...), to old school country (Johnny Cash, Hank Williams, etc...), to lo-fi analog synth-rock (Black Moth Super Rainbow, Octopus Project), to psychobilly (Reverend Horton Heat, Frantic Flinstones...) to jazz (Miles, Coltrane, Brubeck, etc...), to movie soundtrack composers (Ennio Morricone, Danny Elfman, etc...), to latin/salsa (Buena Vista Social Club, Gyspy Kings, etc...), to heavy electronica (Aphex Twin, Squarepusher, etc...), to ambient electronica (M83, Plaid), to Japanese noise punk (Melt Banana), the classics of soul and funk and groove, (James Brown, Herbie Hancock, etc...), and of course all forms of rock (I don't really need to list examples of that), and even stuff that is unclassifiable, like Mr Bungle and Secret Chiefs 3.
whew, I could go on, but that is the short list. I haven't even touched on some of my favorite bands.
And by the way, I put the entire playlist on shuffle. Viva variety.