Looking for Empowering Songs?

I'm looking for some empowering songs to fill up my Shuffle. I want them to be upbeat (rock or pop, but I’ll check out anything) so I can listen to them while I'm working out, nothing sappy and slow. I need to psych myself up for work. I need courage, confidence, and perseverance. People keep ragging on me and putting me down. I need to put myself above it and have the courage to tell them where to stick it! They don’t have to be woman oriented and I have a loving husband so I don’t need how to dump you man or live with out him songs. Thanks!