Less than 24 hours after sharing its new song on "World News Tonight With David Muir," the U.S. Army -- with special guest retired Gen. Martin Dempsey-- is making waves across the U.S. and uniting ...

However, unlike many other presentations given by Dempsey during his tenure, he does not go out with a song. We've fixed that below, with a half-dozen of the chairman's performances, some of which ...