Music that Pumps Your Blood

I do not claim to be any superstar workout queen, but I am trying to get my heart rate up past the 'near death' level during these cold winter months.  I've been trying to slowly add new songs to my playlist when I go do my thing at the rec center.  Don't ask what my thing is, please.

In all seriousness, right now my favourite songs that get my blood pumping are songs by The Black Keys (Gold on the Ceiling, Lonely Boy, I Got Mine..., etc.). I feel like I could run a marathon when I hear those on shuffle.  Also, anything by RHCP gets me, at the very least, to a regular heart rate (for my age).  So, I'm asking to those of you that regularly do some sort of exercise that involves listening to music - what songs help keep you motivated to get blood pumping through your veins?

Please... no dance, pop or any other weird sh#t.  I do love disco though, so naturally The Bee Gees or Diana Ross would be okay.