In October of 1976 I found this issue of Mad which featured an awesome Trek spoof, "Keep On Trekin': The mad Star Trek Musical," one of many Trek parodies they did. I have just about all of them, from the first onward, and I'll feature them all sooner or later. But this one had an awesome cover painting, one of my favorites. As always, click on the images to view the Angry-God-Apollo-Sized scans. Enjoy!