Ten models tell Dave ten questions on the SI Swimsuit Edition application.
"Top Ten Things I, Mick Jagger, Have Learned After 50 Years in Rock 'n' Roll."
Dustin Hoffman plants one on Niall Horan from One Direction.
Nick Offerman sings a "very romantic" song he wrote for his wife, Megan Mulally.
President Obama discusses the comments made by Mitt Romney in a recently released video.
Michelle Obama delivers a personalized, heartfelt message from her husband.
David Letterman's Top Ten for August 13, 2012.
Will Ferrell discusses his two-year-old son's trash-talking ways with David Letterman.