With Jimmy Fallon moving to the "prime" spot of Tonight Show host, he has to step up his act to fill the shoes left behind by many great former hosts. So far Jimmy hasn't disappointed. In an effort to up the ante on his Brian Williams rapping bit, he introduced a new song that features NBC's weekend anchor Lester Holt and a cameo from Cathy Lee Gifford.

This is BY FAR the best of this series of Brian Williams rap videos, and I hope Jimmy and his team keep raising the bar with this awesome bit.

Watch Brian Williams and Lester Holt Rap "Rapper's Delight"