Horror - I've always been a horror child. Something about it gets my curious blood boiling. The "what's ifs", "I would have done", "what were they thinking". Plus you can learn a lot of survival tips that way.
Classic Rock or 90's Grunge - The Who, U2, Pearl Jam, Nirvana, Smashing Pumpkins, David Bowie, CCR, Jefferson Airplane, Steve Miller Band, Ozzy, etc, etc.
Classic Rock brings be back to my youth while helping my dad in the barn or help my mom clean. Saturdays were reserved for cleaning. My parents would crank the radio so loud, you could hear it at the neighbors - and we lived in the country.
Grunge takes me back to high school. Nuff said.
Dystopian - Of course! Kind of links back to the horror movies. The idea of a society, generally of a speculative future, characterized by negative, anti-utopian elements, varying from environmental to political and social issues fascinates me.
Old School Rap - i.e. KrissKross, Fresh Prince, Tupac, and Bone Thugs and Harmony and I can't forget my good pal Johnny Cash. I usually HATE country music but I love me some Johnny!
All photos taken from Google photo searches