Weird Al Yankovic's 'Tacky' Is The Pharrell William's 'Happy' Spoof Everyone's Talking About

Instagramming your food. Dropping names. Never letting someone forget the favour you did for them.

Yes, if you do all of these things, you're tacky - according to the wonderful Weird Al Yankovic, at least, in his extremely funny parody of Pharrell Williams' smash hit 'Happy'.

Take it away, Al (plus your cameo stars Margaret Cho, Jack Black, Kristen Schaal and more).

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