Here you go guys a classic :D
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Remember! Don't Worry.
For all you donuts here i made a mistake in thinking it was bob marley it is actually Bobby McFerrin Jeezz sorry :)

Lyrics.
Here's a little song I wrote
You might want to sing it note for note
Don't worry, be happy.
In every life we have some trouble
But when you worry you make it double
Don't worry, be happy.
Don't worry, be happy now.

CHORUS:
Don't worry, be happy. Don't worry, be happy.
Don't worry, be happy. Don't worry, be happy.

Ain't got no place to lay your head
Somebody came and took your bed
Don't worry, be happy.
The landlord say your rent is late
He may have to litigate
Don't worry, be happy.

CHORUS:
(Look at me -- I'm happy. Don't worry, be happy.
Here I give you my phone number. When you worry, call me,
I make you happy. Don't worry, be happy.)

Ain't got no cash, ain't got no style
Ain't got no gal to make you smile
Don't worry, be happy.
'Cause when you worry your face will frown
And that will bring everybody down
Don't worry, be happy.

CHORUS:
(Don't worry, don't worry, don't do it.
Be happy. Put a smile on your face.
Don't bring everybody down.
Don't worry. It will soon pass, whatever it is.
Don't worry, be happy.
I'm not worried, I'm happy...) (less info)