Wow I'm the odd one out... I can't do anything without listening to music (I have headphones in when I sleep) but my taste seems to be a bit more spread out:
I love 2pac, B.I.G, Jayz, Roots, Gang Starr, Kanye West, Outkast, Eminem, Dr. Dre...
Frank Sinatra, Louis Armstrong, Earl Klugh, Bob James, Norah Jones...
Nickelback, Creed, Staind, Lifehouse...
Sarah Mclachlan, Dido, Jewel, Vanessa Carlton...
Audioslave, Radiohead, Nirvana, Tool...
Mozart, Beethoven, Grieg, Chopin...
And the list goes on, but I must admit 2pac is my all time favorite