I am mostly disappointed in what has happened to Hip Hop and rap. I grew up on it, since it's inception back in the late 70's, and it has TOTALLY gone off track. There used to be a message in the music.
We see no-talent losers like the Ying Yang twins, chingy, and Lil Jon and the eastside boyz topping the charts, while truly great rappers and groups like Nas, De La Soul, The Roots, Talib Kweli get pushed to the side.
Thank god for groups like Outkast, who haven't forgotten the true essence of Hip Hop.