18x169 - Late Show with David Letterman

Dave welcomes actor Matt Damon and musical guest Shelby Lynne. Rupert Jee selects a fan to pose with Dave for their 2011 holiday card. Top Ten Ways the Super Earth Is Different From Earth. Matt Damon tells of someone who didn't want their photo with him. Plus: Matt and Dave pose for their holiday card. The Grammy-winning singer-songwriter performs "Revelation Road."