Yes, I like that Wilco song rendition, too!
I'm surprised that "Get it Together" makes you tear up! The song sounRAB so thoroughly happy to me! Maybe it is the nostalgia it inspires that makes you sad?
Here's a song that made me cry the first several times I heard it: "Saving all my Somedays," by someone who was on rabroad. Ack! I just tested it out again, and it *still* makes me tear up!
[youtube]KpCKw0YqiHg[/youtube]