OK so he didn't really rap it… the guys from The Tonight Show Starring Jimmy Fallon cut up a bunch of clips and created a crazy funny version of Williams covering Snoop. #laidback   #JimmyFallon   #SnoopDogg  

If you haven't see the others Jimmy has also had Williams doing Rappers' Delight (the best IMO): http://youtu.be/-YCeIgt7hMs

NWA's Straight Outta Compton: http://youtu.be/g87Xyt2agWQ 

Young MC's Bust a Move: http://youtu.be/QbM-xf_ACYI