Justin Timberlake & Jimmy Fallon Rap 40 Years Of SNL Memories 2015 'Saturday Night

Tonight's 40th anniversary celebration of Saturday Night Live on NBC opened with a musical tribute to the variety show's most memorable moments, starring former cast member Jimmy Fallon and oft-host Justin Timberlake—who briefly brought back "Dick In A Box." 50 Cent, Backstreet Boys, Kanye West, Justin Timberlake, Ludacris, Miley Cyrus, *NSYNC, and a lot more are either going to appear in skits or hit the stage to perform.Sadly, even the SNL 40th anniversary opening number couldn’t escape from Debbie Downer. Rachel Dratch’s character walked onto set just as Justin Timberlake and Jimmy Fallon got into their groove. “Sadly, history has taught us that opening the show with a musical number leads to a sharp drop in ratings,” said “Debbie Downer,” complete with her signature sound effect.For the grand finale of this #SNL40 opening number, Justin Timberlake and Jimmy Fallon sang the names of just some of the stars who will attend the 40th anniversary special. It was a fitting kickoff for what is sure to be an unforgettable night!