Pharrell Williams' song Happy has been a hit around the world. Its infectious upbeat tune and lyrics have inspired people from every corner of the globe to celebrate what brings them joy in the place they live.
Here are 11 of the best of them. If you don't have a big grin at the end of it, you've got a heart of stone.
1. Happy in Burundi
Put together by Akilah Institute for Women, the only women's college with campuses in Rwanda and Burundi.
2. Happy in Burma
From the streets of Yangoon. Things really are looking up!
3. Happy in Tatooine (Tunisia)
You know you've got a hit on your hands when even Darth Vader can't help tapping his feet.
4. Happy in San Salvador, El Salvador
The former war-torn central American country puts on a happy face.
5. Happy from Seoul, South Korea
With assorted actors and K-Pop luminaries.
6. Happy in Žilinský kraj, Slovakia
Wearing traditional clothes and smooching under flowering trees seems to be what makes Slovakians happy.
7. Happy in Namibia
Don't let the dust get you down.
8. Happy in Tahiti
You'd be happy too if you live in Tahiti.
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9. Happy in Antarctica
Cold. But happy.
10. Happy in Manaus, Brazil
Well, at least until the English football fans turn up.
11. Kochi in India is Adipoli (Happy)
Doesn't quite scan, does it?
12. Happy in Senegal
Not lip synching. A cool re-imagining. Probably our favourite.
And finally, a sad version of Happy
Because life isn't all sweetness and light.