2. FU by Miley Cyrus
You've heard Miley before, but you've never heard her like this. This song is cute and catchy. It has lyrics like, "I've got two letters for you. One of them is F and the other is U." If your ex broke your heart by cheating on you, then you'll be able to relate to everything that she says. After all, it's hard to stay civil after getting your heart brutally broken.