Jimmy Fallon has taken over for Jay Leno on "The Tonight Show" on NBC. This means a portion of Jimmy's monologue is now featured each weekday morning at 6:40 with The Morning Waking Crew. One of the coolest things Jimmy's shows have done are these musical mash-ups of NBC Nightly News anchorman Brian Williams and songs. I don't know how long it takes them to put one of these together, but this one may be the best yet!