I was gonna suggest "The Look" but remembered that Vlad did a video to that, and with the same concept, no less. Hm..
- "Playing With The Boys" by Kenny Loggins, but it might sound a little too "happy" for a video about badass-ness.

And just to note, there's a 12" mix version of it also.
- While it's not directed toward females in particular, you could try "Mean Machine" by Sugar Ray.
- "Moving On Up" by M People
might work...
I had no idea my music collection had so little songs about girls being badass.
