Viral Video Jimmy Fallon SNL 40: Singing With Justin Timberlake, Jamming With Taylor Swift And Paul McCartney And Then Drunk Recap On ‘The Tonight Show’! [WATCH]

Over the past Sunday, Jimmy Fallon happened to have a privileged spot in the "Saturday Night Live 40th Anniversary Special," as he, along with Justin Timberlake, was the one to yell out the classic phrase "live from New York, it's Saturday night!"

However, it seems like this wasn't remotely the best of the night, if audiences are to believe his latest viral video, where he recapped the experience of meeting up with his old SNL crew, the classics and the insane amount of stars ... and then he even ended up jamming with Paul McCartney, Dan Aykroyd and Taylor Swift at the after party!

It seems there was an open stage for anyone to jam, with people from Debbie Harry from Blondie to Miley Cyrus, Michael Bolton and even Prince. You can watch Fallon's excited retell of the night below!

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