Most of the stuff on my driving playlist is pop, heh. I've got "Misery Business" by Paramore too and "Since U Been Gone" by KC. I don't know if you're into country in the slightest, but if you wanted to try some...I love singing along to "Our Song" and "Picture To Burn" by Taylor Swift. (Mostly because I think I can sing about as well as she can. :P) "Picture To Burn" is definitely the ~fiercer~ of the two.

This is a pretty fierce rocker chick song IMO: "Volcano Girls" by Veruca Salt (http://www.mediafire.com/?lnlpuddmdid)

Oh, and there's also a really good rock remix of "I Kissed A Girl" by Katy Perry on iTunes. And her cover of "Use Your Love" by The Outfield is awesome. I can upload it if you want!