Being 21, I'm from a different generation than most replies to this thread so here's some from my generation (well most of it...My hip hop/rap tastes date back to the 90's because what they call "hip hop/rap" nowadays is ridiculous haha)
When I fire up my SS for the first time and roll off the lot here are some music possibilities (although I may leave it up to the iPod to decide)...
Troublesome - 2Pac
Bandoleros - Tego Calderon & Don Omar
How Do You Want It - 2Pac
La Revolucion - Wisin Y Yandel
Supermassive Black Hole - Muse
Quiet Storm - Mobb Deep
Entre Dos Tierras - Los Heroes Del Silencio
Moment of Clarity - Jay-Z
Tocarte Toda - Calle 13
What's Beef - Notorious BIG
All Up 2 U - Aventura with Akon
All Eyez On Me - 2Pac
Oh Dios - Tego Calderon
A little variety in my taste in music
Mostly Hip hop/Reggaeton