How convenient: Four days before Pharrell is scheduled to perform it at the Oscars, and five days before his album G I R L drops, "Happy" is the No. 1 song on the Billboard "Hot 100." It is his second No. 1 in the last year (assuming you count "Blurred Lines," which you should, because Robin Thicke did not come up with that one by himself). Anyway, congratulations to Pharrell, his schedulers, and his hat.