People from many places across the world (23 cities, 17 countries, all continents except Antarctica) dancing and being happy to Pharrell Williams' song "Happy" :)

If you like the idea, you can watch the awesome original videos in full length:

Antananarivo, Madagascar    • Video  
Barcelona, Spain    • Video  
and also    • Pharrell Williams  Happy (we are fro...  
Belfast, UK    • Belfast is Happy (ORIGINAL)  
Berlin, Germany    • Pharrell Williams  Happy [Berlin Dan...  
Bialystok, Poland    • Pharrell Williams  Happy ( Happy Bia...  
Bizerta, Tunisia    • Video  
Cape Town, South Africa    • Pharrell Williams  Happy (We are fro...  
Florence, Italy    • Pharrell Williams  Happy (FIRENZE IS...  
Geneva, Switzerland    • Pharrell Williams / We ARE from GENEVA  
Hong Kong, China    • Happy (in Hong Kong)  Pharrell Willi...  
Jajce, Bosnia    • Pharrell Williams HAPPY We are from J...  
Kampot, Cambodia    • Epic Arts Cambodia perform 'Happy' Ph...  
Lodz, Poland    • Happy Lodz  Łódź IS ALSO HAPPY (Phar...  
Nassau, Bahamas    • Pharrell Williams  Happy (Bahamas ve...  
New York, USA    • Jay Nog Is Happy on 43rd and 6th In M...  
Paris, France    • Pharrell Williams  Happy WE ARE FROM...  
Poznan, Poland    • Pharrell Williams  Happy (POZNAN IS ...  
Sao Paulo, Brazil    • Pharrell Williams  Happy (we are fro...  
Sfax, Tunisia    • HAPPY (we are from Sfax  By Modjo)  
Sydney, Australia    • Happy (Pharrell Williams)  Sydney Ha...  
Tokyo, Japan    • Pharrell Williams  Happy (Tokyo Vers...  
Toulon, France    • Video  

I still haven't made a video for Sarajevo (just a short clip), but I'll post it here if I get it done.

Don't worry, be happy :)