"Don't worry, Be happy"

Been working on this tomorrow presentation and got stress when I am not sure if what I understand from the text is correct or not. Also, I can't find any more source to support my understanding, I just suddenly need to talk to someone. That's when Elen came to talk to me and she gave me this quote "Don't worry, be happy". Just then I remember a song with this title. Quickly, I went to grab the video from youtube and share it here ^_^ Thanks for the quote, Elen!