10x115 - Late Show with David Letterman

After admitting that his medicine is making him bloated, Dave loosens his belt for all the world to see; during Biff's annual visit to Yankees Spring Training, he and Hideki Matsui recreate Abbott & Costello's ""Who's On First?"" routine; ten members of an Air Force base in Alaska present the Top Ten; Bo Diddley and the Debby Hastings Band performs ""Who Do You Love.""