Sadness had been close as my next of kin
Then Happy came one day, chased my blues away
My life began when Happy smiled
Sweet like candy to a child
Stay here and love me just a while
Let Sadness see what Happy does
Let Happy be where Sadness was
[ Lyrics from: http://www.lyricsfreak.com/m/michael+jackson/happy_20092761.html ]
Happy, that's you
You made my life brand new
Lost as a little lamb was I till you came in
My life began when Happy smiled
Sweet like candy to a child
Stay here and love me just a while
Let Sadness see what Happy does
Let Happy be where Sadness was
(Till now)

Where have I been?
What lifetime was I in?
Suspended between time and space
Lonely until Happy came smiling up at me
Sadness had no choice but to flee
I said a prayer so silently
Let Sadness see what Happy does
Let Happy be where Sadness was till now