Did you ever...?

Have a song stuck in your head, and no matter what you do, you can't get rid of it?
My children are practicing for their spring concert, and we've been playing a tape of the songs all week. I'm now walking around the house muttering

'There's a big beautiful planet in the sky
and it's our home
It's where we live
You and many others live here too
The Earth is our hoooooooome
It's where we liiiiiive.'

AND I CAN'T STOP!