Favorite drunk driving song - Johnny Cash - I Walk the Line
Favorite commuting to work song - Rammstein - Feur Frei
Favorite commuting back home song - ACDC - Thunderstruck (NIN - Head Like a Hole - close 2nd)
Favorite album to listen to at work - Rammstein - Mutter (4 weeks running now, but this changes from time to time)
Drinking music:
Bourbon - Buddy Guy - My Time After a While (album)
Captain Morgan - ACDC - Back in Black (album)
Beer - I had better be watching a game or bs'ing with friends, no need for music.
Gaming music:
Lately it has been Rammstein - Mutter (album) or the new one. Static-X - Shadow Zone (album) was my gaming music for a long long time.
Honorable Mentions:
anything SRV
Led Zepplin IV
Doro
Static-X
Bob Marley
Oh wait, was this for one song only? I've never been very good at following instructions

I would never die for my beliefs because I might be wrong.
~Bertrand Russell