The Karens, a group of people in Burma, once considered rainbows to be dangerous demonic spirits that devoured the souls of humans and caused sudden or violent deaths. They thought that such activity made the rainbow thirsty enough to appear in the sky and dip down to Earth to drink water.

There was a belief among ancient Polynesians that a rainbow was a ladder that their heroes climbed to reach heaven.

In ancient Greece people thought that Iris, wife of the god Zephyrus, caused rainbows. Iris was a messenger between mortals and the gods. She ran back and forth, dressed in shimmering multicolored robes. The word "iridescence" comes from Iris's robes.

And since nobody has yet figured out what the heck they are, Karen Carpenter, Bob-Marc, and Sherilyn Connelly will to get the bottom of it in the FINAL BROADCAST of NOSE HAIR LINT GLAND. What does it all mean?

NOSE HAIR LINT GLAND: We're pretty sure Ritchie Blackmore is involved somehow.