I Don't Need a Man by The Pussycat Dolls

I love the chorus:

"I don't need a man to make it happen
I get off being free
I don't need a man to make me feel good
I get off doing my own thing
I don't need a ring around my finger
To make me feel complete
So let me break it down
I can get off when you ain't around"

It's one of the sassiest "You go girl!" songs I've heard in recent years.

Not Fair and Never Gonna Happen by Lily Allen

These songs are so funny. I love Lily Allen. She is so whip-smart and clever. "Not Fair" is basically about a girl who is frustrated because her man doesn't satisfy her in bed. Even though he's a really nice guy, he pretty much is clueless on how to make her happy. Ladies, I think we've all experienced that in some point in our lives, don't you agree?

"Never Gonna Happen" is Lily singing to a guy to leave her alone once and for all, to stop calling, because she doesn't love him, and she finds it hard to tell him the truth because he's so desperate to be with her. Harsh and cruel, but the way Lily sings it makes it more humorous than bitchy.

You'll See by Madonna

The ultimate break-up song (IMHO). The video is just as powerful too. It is the sequel song/video to "Take a Bow". In the video, the bullfighter from TAB has the tables turned on him when Madonna rejects him and he ultimately wants her back. I love the lyrics: "You think that you are strong, but you are weak/You'll see/It takes more strength to cry/Admit defeat/I have truth on my side/You only have deceit...It will be mine, no one can take it from me."