It depends on what I am doing
Running: Top 5
1. Crystal Method: Jupiter Shift
2. Muse: Madness
3. The Glitch Mob: Fortuen Days
4. Kanye West: Stronger
5. Ellie Goulding: Hanging On
Weight Training: Top 5 (Warning most of these are explicit) Just wanted let you know
1. Korn: Coming Undone
2. The Birthday Massacre: Red Stars
3. Drowning Pool: Tear Away
4. Limp Bizkit: Bring It Back
5. Hoobastank: Crawling in the Dark
Oh I have tons. Basically I just sat down one day and went through my entire library I have loaded in itunes and just played the first ten seconds or so of each song, and put every one with an up-tempo into a playlist for listening to when exercising. Some of my favorites are by P!nk.