lolAwesome Brian Williams Rap Mash-Up Of "Regulate"Jimmy Fallon strikes again, this time with "Regulate" by Warren G.By by Michael RuschBuzzFeed News ReporterPosted on June 7, 2013, 5:49 amTwitterFacebookLink View this video on YouTube youtu.be / Via Twitter: @AnthonyQuintano You can also watch Brian Williams perform "Nuthin' But A 'G' Thang." Topics in this articleBrian Williams