Letterman Laughs See the "Top Ten" tips to become a supermodel. ent_letterman_david.jpg 60x45 home rtsp://real.cbsig.net/g2demand/entertainment/mini/lateshow/davetv/heidiklumten.rm?rpcontexturl=http://smilparse.real.com/showcase/1pubs/tcenter/wns.html&rpurl=http://www.cbs.com/latenight/lateshow/# 10388674404030 cbs_free.gif lock_icon.gif video.gif rtsp://real.cbsig.net/g2demand/entertainment/mini/lateshow/davetv/heidiklumten.rm?rpcontexturl=http://smilparse.real.com/showcase/1pubs/tcenter/wns.html&rpurl=http://www.cbs.com/latenight/lateshow/# 10388674404031 PLAY lock_icon.gif lock_icon.gif lock_icon.gif headline