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Pharrell Williams Wrote 8 Versions of 'Happy' Before It Was Finished

The singer reveals the creative process behind the hit song.
04/07/2014

Transcript for Pharrell Williams Wrote 8 Versions of 'Happy' Before It Was Finished

? happy happy ? Lara and pharrell up on the roof. Having so much fun with pharrell Williams on "Gma." A lot more songs from his new album are coming up. First let's welcome back pharrell Williams,... See More
This transcript has been automatically generated and may not be 100% accurate.
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