'Prayer' by Kings Kaleidoscope is an explicit song by a Christian artist. I don't have any answers as to whether or not it's the correct thing to do. However, I will say that I have seldom heard a song that more effectively, and powerfully, displays the heart of God.
Give it a listen for yourself and let me know what you think down in the comments below.
Bonus points for listening to the clean version and wrestling with which version you find more powerful.