I don't think it's fair to chalk up all rap songs as violent and degrading. Yeah, a lot of popular rap is violent. Some is just junk. That doesn't make all of it so. Some of it is genuinely poetic and musical. Before you write all rap off as worthless, listen to Lauryn Hill and Erykah Badu. I'm not much of a rap listener, so I can't come up with any others off the top of my head. I think those two women show that rap can be real music, despite the trash that gets put out by some rappers.

And in the Paddyrap arena, my personal favorite is Joe Dolan's "Jerusalem Rap".