Which is the ultimate Kermit theme? Of course, "Green" has been around longer, and has been covered dozens of times, but if I had to choose, I'd pick "The Rainbow Connection," not only as my personal favorite but as the better song. "Bein' Green" is deep, but not as singable. It's very personal, and while both songs have a very universal philosophy that could be expressed through anyone, TRC connects to a more general audience. I think My favorite version of "Green", by the way, is the one Kermit does with Lena Horne.