I have the soundtrack on my iTunes, but I don't know which one was playing at the time. If you can give me some of the lyrics, perhaps I could then look it up. Otherwise, I can edit this response and include all the track titles. Just let me know what you want.
BTW, if the tracks are in the same order as the movie, the first song after the opening music is #1 Crush by Garbage. It starts with "I would die for you, I would die for you, I've been dying just to feel you by my side." Is that it?
Hope that helps!