I suppose this post show my eclectic taste in music!
Ants Marching by Dave Matthews Band
I prefer "Ants Marching" from the album "Live at the Red Rocks". The beginning showcases Stephan's awesome bass-playing abilites. Plus it's Dave, and I'm in love with the group. It's just a sweet groove, man. Go Stephan! Go Stephan!
Single Ladies (Put A Ring On It) by Beyonce
Do I seriously have to spell it out? It has an awesome beat, and it's just a fun song to jam to!
Yeah, I know--it's the hard stuff. But Trent Reznor writes some pretty amazing music. The drum beat at the very beginning (and throughout, actually) is just addictive. I start it over just to hear that beginning beat!