Watch Taylor Swift, Paul McCartney, Prince & More Jam at 'SNL' Afterparty

Taylor Swift performs during the Capital FM Jingle Bell Ball 2014 held at The O2 Arena in London on Dec. 7, 2014.

From the looks of it, Sunday night's Saturday Night Live 40th Anniversary celebration wrapped up with a jam session for the ages, including Taylor Swift, Paul McCartney, Jimmy Fallon, Prince, Haim, Bill Murray and more in an all-star band. The set notably included Swift's "Shake It Off" and the Beatles' "I Saw Her Standing There." 

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The lineup didn't stop there, of course. As Entertainment Weekly reports, Chris Rock, Martin Short, Dan Aykroyd, Jim Belushi and Maya Rudolph all got in on the fun as well. 

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Just watch the clips below to get a sense of the full show: