Last night Jimmy Fallon made his debut as Jay Leno’s replacement on The Tonight Show. Fallon was joined by Will Smith to do a two and a half minute tribute to hip-hop dances. The fun but hilarious routine found Will getting carried away with the Spank That dance but he straight-up refused to twerk with Fallon. It’s great to see Fallon out there doing hip-hop dances because he’s made a big contribution to the visibility of the artform by making The Roots the first hip-hop group to be the house band on any kind of TV show. And Fallon also made Will Smith, a legendary hip-hopper and movie star his first guest.