`` Weird Al '' Yankovic is educating the Internet on how to properly use the Oxford comma . Comment: The " a, but not necessarily in that order " rule was invented by an English professor named John McWhorter ( who also wrote about it ) and he's been using it ever `` I 'm not alone . For the latest on The Lead with Jake Tapper click here . I 'm not the only grammar nerd out there , '' Yankovic says .
`` Weird Al '' Yankovic is educating the Internet on how to properly use the Oxford comma . Comment: The " a, but not necessarily in that order " rule was invented by an English professor named John McWhorter ( who also wrote about it ) and he's been using it ever `` I 'm not alone . I 'm not the only grammar nerd out there , '' Yankovic says .