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Pharrell Williams, U.N. Foundation team for International Day of Happiness

Pharrell teams with UN Foundation for #DayofHappiness on Friday, crowd-sources #Happy video tributes

Pharrell Williams is yet again calling on people to get "Happy."

Fro the second year in a row, the Grammy-winning singer-songwriter is partnering with the United Nations Foundation to celebrate the International Day of Happiness, observed on Friday.

The musician, 41, with the help of Google, is urging young people to engage on the issue of climate change and join the "Global Happy Party" to raise awareness and demand action on the issue by signing the Live Earth climate petition. The petition urges world leaders to adopt a new global agreement on climate at December's summit in Paris.

"In a year where there is so much turmoil in the world, from social conflict to climate change, we need moments to stop and celebrate happiness," the N.E.R.D. alum said in a statement. "Protecting our planet is fundamental to the pursuit of human happiness and that is why we have chosen to support Live Earth's movement to raise a billion voices for climate action. We believe that happiness can change the world."

The festivities begin on Tuesday, and people can upload photos of themselves to be transformed into animated dancing images set to the jubilant Grammy-winning "Happy" — much in the vein of Williams' original music video and hopefully more lighthearted than his rendition at the Grammy Awards in February.

Google's role in all this is using its mapping technology to see who's participating around the world.

The International Day of Happiness, established in 2012 by the U.N. General Assembly, hopes to recognize the "relevance of happiness and well-being as universal goals and aspirations in the lives of human beings around the world" and in public policy objectives.

The singer could probably use a little more to be happy about too.

Earlier this month, he and singer Robin Thicke lost their "Blurred Lines" copyright infringement case to the Marvin Gaye estate, which said that parts of the 2013 hit were lifted from Gaye's 1977 song "Got to Give It Up."

The late soul singer's family was awarded $7.3 million in damages, but Williams and Thicke's lawyers remain adamant that the song was original and plan to appeal the verdict.

Follow me on Twitter @NardineSaad.

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