I imagine this has been posted already, especially in the video tributes. (but I'm not sure because my speakers don't work.)
Anyway, a lot of people that "You are my sunshine" is much more than that one verse. Here is the entire song.
You Are My Sunshine
My only sunshine.
You make me happy
When skies are grey.
You'll never know, dear,
How much I love you.
Please don't take my sunshine away
The other nite, dear,
As I lay sleeping
I dreamed I held you in my arms.
When I awoke, dear,
I was mistaken
And I hung my head and cried. (makes you feel for Cindy and George, who have probably gone through exactly this many, many times)
You are my sunshine,
My only sunshine.
You make me happy
When skies are grey.
You'll never know, dear,
How much I love you.
Please don't take my sunshine away.
I'll always love you
And make you happy
If you will only say the same
But if you leave me
To love another
You'll regret it all some day;
You are my sunshine,
My only sunshine.
You make me happy
When skies are grey.
You'll never know, dear,
How much I love you.
Please don't take my sunshine away.
You told me once, dear
You really loved me
And no one else could come between
But now you've left me
And love another
You have shattered all my dreams; (this verse and the last give me chills, almost like Caylee could be saying this to Casey

)
You are my sunshine,
My only sunshine.
You make me happy
When skies are grey.
You'll never know, dear,
How much I love you.
Please don't take my sunshine away.
Louisiana my Louisiana
the place where I was borne.
White fields of cotton
-- green fields clover,
the best fishing
and long tall corn;
You are my sunshine,
My only sunshine.
You make me happy
When skies are grey.
You'll never know, dear,
How much I love you.
Please don't take my sunshine away.
Crawfish gumbo and jambalaya
the biggest shrimp and sugar cane,
the finest oysters
and sweet strawberries
from Toledo Bend to New Orleans;
You are my sunshine,
My only sunshine.
You make me happy
When skies are grey.
You'll never know, dear,
How much I love you.
Please don't take my sunshine away.