I have to admit, I love Conan O'Brien, the guy just cracks me up!  I saw this Tonight Show with Conan O'Brien the night it aired and have been looking for the clip - and finally it has arrived! 

Guest Gwyneth Paltrow looked fabulous and toned on the show, and apparently Conan has heard about Gwyneth's infamous butt exercises, because he asked the Iron Man 2 star what he could do to get a little plump in his trunk.  Here's Gwyneth's fitness advice: