Why are there so many songs about Rainbows?

yes, i drew a picture of Rainbow Dash. I suppose that means i am some level of Pegasister, and there's nothing wrong with that

I just thought of Rainbows dash singing rainbow connection and this was born. enjoy

"Someday we'll find it
the rainbow connection
Unicorns
Earth ponies
and me!" <-----for all you pegasisters and Bronies out there