Songs with message about female empowerment

I was listening to some new music from Beyonce on the radio and it occurred to me that there is a new theme in music now. Beyonce's new single "If I were a Boy" and her second hit "Single Ladies" both seem to have a reoccurring theme. The song "If I were a boy" is very reminiscent of "Like a Boy" by pop/ crunk and b star, Ciara. The songs have a similar message. You get hurt and your scorned yet you would rather be a boy or man to make him feel the same pain you do when you deal with him and what they cause you to go through. It's interesting that women now want to become men or have that type of control. Both women have a similar take and outlook women should feel empowerment and strength. I believe they are right but why would want to be a man when you can actually just be yourself and still get some revenge as well.