I usually work out listening to the "50 cent" station on pandora. A few days ago one of the songs from the "Requiem for a Dream" sound track came on and I clicked "thumbsup" on it. Well a few tracks later this song came up from E.S. Posthumus, and I really like it. So now I have a mix of 50c3nt-like hip hop and these rock-chant-whatever-you-call-it music. It's pretty cool!
http://youtu.be/f2yJzMgaUAk