Pharrell Williams has revealed that his worldwide hit Happy was originally recorded by Cee Lo Green. "He wanted to do it ... he did do it," Williams explained in a radio interview with Howard Stern yesterday."He sounded amazing on it. I mean, he burns my version! But the ... how do I say this diplomatically? Um ... he ... um ... The powers that be, at the time, did not see it fit for him. Some folks on his team just felt that the priority should be on his album at the time, so they elected not to do that song."