470013507 Jimmy Fallons Tonight Show Debuts With a Cavalcade of Cameos (VIDEO)Theo Wargo/Getty Images for The Tonight Show Starring Jimmy Fallon

The stars were out en masse last night — both in front of and behind the camera — to support newly-christened “Tonight Show” host Jimmy Fallon during his debut hosting gig.

Hollywood heavyweights, including Will Smith, Robert De… Continue reading Jimmy Fallon's 'Tonight Show' Debuts With a Cavalcade of Cameos (VIDEO)