The thing is their is amazing rap. You have to be willing to judge something for what it is to really appreciate it. As for commercial pop music- you find everything from pure studio magic to actual great performers performing mediocre (but, yes, catchy music). But we all hear the same song structures being used over, same melodies, same cliches blared over the radio every day. I really can't defend that, though I do acknoledge that many of those performers are great performers. I also alot of wasted potential. Think about the music these people could be making. I think we all really have to accept this for what it is: reality. Stay true to your art, and nobody really has any right to critisize you ever. Just remember that just because you don't like it, it doesn't meant he other guy isn't staying true to their art.