It's a Nice Day because the song "It's a Nice Day" is free.
I went to copy this video off my cable recorder and it said it was copy-protected. Then I thought, wait a minute, the meaning of the song sounds like it came from a place (group) that believes that the beauty of it should be free.
So I looked it up online, and it was true!
(preview shmeview, the whole song plays,
It's a ♪ Nice Day ♪: