"Happiness" from "You're a Good Man, Charlie Brown!"

Snoopy and his friends, Lucy, Schroder, Charlie, Linus, Sally and Woodstock, are watching the sky in the evening and talking if the light they are looking at is an airplane’s or a sate light.
The next morning, Charlie is happy because he found a little red pen and he thought that it is a girl’s pen and they start singing about their happiness.
Sally says that she is happy when she knows a secret and she catch a firefly.
Linus thinks that he is happy when he learns the whistle.
Charlie’s happiness is to eat ice cream and Snoopy’s is eating pizza.
Schroder ‘s happiness is climbing a tree.
Their happiness is the evening, the morning, day time and night time and when everyone and everything are at all.

http://www.youtube.com/watch?v=hKKjqzkGo3o