When you're smiling, keep on smiling,
The whole wide world will smile with you;
And when you're laughing (ha, ha, ha, ha!), keep on laughing (ha, ha),
You'll find the sun will come shining through!

But when you're crying (boo-hoo), you bring on the rain;
Stop your sighing and be happy again.
When you're smiling, keep on smiling,
The whole wide world will smile with you!
[ Lyrics from: http://www.lyricsfreak.com/c/cab+calloway/when+youre+smiling_20592154.html ]