Off-topic: best two-chord songs?

I'm trying to make a list of the best two-chord songs that I'm aware. The whole three-chord song thing is a cliche by this point. Few people talk about two-chord songs.

Here's what I've come up with so far: "Jambalaya" by Hank Williams Sr.; "Jane Says" by Jane's Addiction (it might have a quick bridge, and if so, I stand corrected, but as far as I can recall it's a two-chord song) and finally one of the true all-time best songs in the history of music, "Tonight the Bottle Let Me Down" by Merle Haggard.

Can you think of any others?