I haven't watch The Late Show in a while, ever since that asshole screwed Conan off of television I've completely lost interest in it. I'm pretty sure I have a few facts mixed up in that statement so don't quote me. Anyhow, here's hot piece of celebrity ass Jessica Alba outside the Letterman studios the other day looking like well, a hot piece of celebrity ass. Well done.     Related Articles: Jessica Alba Shows Off Her Tramp Stamp And Ass Cleavage Rotten Tuna: Jessica Alba Jessica Alba Must Be Going Crazy Jessica Alba Hotness Tease Photos: Fame