The Tonight Show

If you're going to have only one Facebook friend, it might as well be Facebook creator Mark Zuckerberg. While it's unclear how many stars have Facebook profiles lovingly crafted by the Zuck himself, Andy Samberg has one, and he shared the story of its creation on last night's 'The Tonight Show' with a gobsmacked Jimmy Fallon. We're jealous.

And lo, the tenure of 'The Tonight Show with Jay Leno' has come to an end once again, leaving Jay to walk off into that darling sunset with Jimmy Fallon waiting in the wings and a bitter Conan O'Brien making the only jokes. Jay's first-ever guest Billy Crystal joined the late-night host last night to bookend the run, bringing with him a cavalcade of guest stars to send Jay off in style before the

Just a few weeks' time will see the late night landscape dramatically shift, as 'Late Night' host Jimmy Fallon finally takes the 'Tonight Show' throne from Jay Leno, and 'SNL' veteran Seth Meyers joins 'Late Night' in his wake. Fallon has tapped cinema icon Will Smith and Irish rockers U2 for his inaugural 'Tonight Show' gig, but who will join Seth Meyers on the couch?

Well, there's no stopping the train now, knock on wood. It will be some months until reigning late night king Jay Leno abdicates the 'Tonight Show' throne to Jimmy Fallon, changing the title to 'The Tonight Show Starring Jimmy Fallon' in the process, but at long last, Leno finally has his official February exit date.

With the dust from the purported "Late Night Wars" now settled, 'SNL' vet and 'Late Show' host Jimmy Fallon is set to take over 'The Tonight Show' from Jay Leno come spring 2014, but what changes to the franchise can fans expect? Apart from the major move from Los Angeles back to New York, what other modifications has Fallon made to 'The Tonight Show'?

If this doesn't put a smile on your face, then something is wrong with you...