Here come bad news, talking this and that (Yeah!)
Well, give me all you got, don't hold it back (Yeah!)
Well, I should probably warn ya, I'll be just fine (Yeah!)
No offense to you, don’t waste your time, here's why...

from Pharrell Williams – Happy Lyrics on Rap Genius

Meaning

You can say anything you want, nothing is going to get in his way because he is happy.

:)

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