Some of you are truly tone deaf. David Cook grumbles through songs. The only time he is any good is when he is ripping of other people's arrangements and turning a pop song into a rock song. When he actually sings rock songs, he sucks. And this just goes to show he has no versatility at all. He can sing rock covers of pop songs. He is the boring one that sounds the same all the time. Grumble through a rock song, hit a glory note, and strum away on the guitar. Boring and stupid.