Michelle Beadle, ESPN’s rising star, stopped by the David Letterman show last night. She seemed pretty nervous until Letterman got in a dig at Colin Cowherd  – “what’s his deal?” – at which point she finally loosened up. We’ll leave all the commentary about the sartorial selection and her legs to you. We’ll update this with videos as they appear on the web (there’s one after the jump). Right now, there’s nothing. Guess everyone was up late watching Andy Roddick soil himself against Janko Tipsarevic in the 2nd round.