In the latest Tonight Show with Jimmy Fallon video to go viral, Brian Williams raps Baby Got Back, and it couldn’t be more hysterical. It must have taken The Tonight Show video editors HOURS to get clips of Brian Williams saying the lyrics to Baby Got Back, but somehow they managed to find every soundbite necessary…and it’s a piece of pure genius. When you watch this Brian Williams raps Baby Got Back video, your first instinct will be that he played along with The Tonight Show and did a special version for them…but you can clearly tell that they painstakingly