I haven't been this delighted by a "Weird Al" Yankovic song since the 1980s, when I would dutifully buy his albums on cassette and play them on long car rides. (It's probably just as well that the album era is over, because Weird Al's records forced you to listen to a lot of polka.)
This video combines a parody of "Blurred Lines" with some clever animation from Sacramento illustrator Jarrett Heather. It helps that it deals with one of my favorite topics: grammatical mistakes.
This is easily the best grammar-centric YouTube clip since "Semicolon" by the Lonely Island.
I still hum that one to myself sometimes...