Tác giả: Chưa Biết
Ca sĩ: Holly_ Dolly
Ca sĩ khác: Bobby McFerrin
Here's a little song. I wrote. You might want to sing it note for more. Don't worry be happy. In every life we have trouble but when you worry you make it double. Don't worry be happy. Don't worry be happy now. Oo Oo.