Here's one song that is usually able to make me laugh:
It's hard to get a good version of this on youtube -- he changes the lyrics as circumstances dictate, and the "actions" to this one are a little annoying. Billy Bragg's sincerity while managing to be tongue-in-cheek is truly admirable. But he knows which side he is on.
And this is another song of his that consistently brings a tear. As the years wear on, it increasingly reminds me that I'm but my father's son: