I don't know if you guys realize what mainstream audiences like these days though. I am sure this will be huge. Pop audiences love edgyness and lyrics that make them relate towards their hate towards ex-boyfriend/girlfriends or whatever. That's the vibe I get at least, I dunno.
Definitely pretty cheesy, and stupid stealing "I'M So Sexy" for the chorus, but trust me, this song will be huge anyways.
People love this edgy "woe is me my ex did me wrong - I shall enact revenge now" type bullshit.