Betrayal songs?

for my english book report i have to find two songs that could be part of an appropriate soundtrack for my book. since i don't really listen to music much, i have no idea. could someone (or everyone) suggest something? maybe about betrayal? my book is about a character who is pretending to be an actor when he is really trying to steal the play. In case you've read it, it's called the Shakespeare Stealer. Thx.