Why are there so many songs about rainbows

So I just hear about this awesome show that is going to be put on this Saturday April 18th! It's called "Puppet Up! - Uncensored" and it is put on by the Jim Henson Company. The company has been putting on this show for the past fifty years to honor the irreverence, and creativity of its staff. It is not the average theatre show but it sounds like a great night of laughter, and its done by the real deal people (JIM HENSON STAFF).

If you can make it please, please, please tell me all about it. I can not make the April show but they are supposed to have another show on May 22, which I hope to make. Check Here for more details from the Jim Henson Website.

ALSO***If you are interested in attending Saturdays performance the get your tickets on GoldStar.com because they have tickets on discount for only $15 instead of $30. Click here for the page.

"Why are there so many songs about rainbows"- lyrics from Rainbow Connection from the Muppet Movie