Watch Taylor Swift, Paul McCartney rock out at an 'SNL 40' after-party

 By 
Neha Prakash
 on 
Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

If the haters gonna hate, hate, hate, then Paul's just gonna shake, shake, shake.

Taylor Swift and Paul McCartney teamed up to sing "Shake It Off' at a SNL 40 afterparty, in a performance that proved Paul's a "Swiftie" and Taylor can rock it off. Jimmy Fallon acted as their hypeman, because every iconic duo needs some extra crowd pleasing.

Shake it off with Taylor paul and jimmy. #snl40 A video posted by djcassidy (@djcassidy) on Feb 16, 2015 at 1:35am PST

It won't be long before Paul and Taylor are award-show besties -- after all, Paul's already a fan of dancing in his seat.

Spontaneous moments like this are what keep me falling back in love with music over and over again. @paulmccartney @jimmyfallon A video posted by Taylor Swift (@taylorswift) on Feb 16, 2015 at 5:50pm PST

Of course the coolest moment of my life happens and I can't figure out how to flip the video the right way. @paulmccartney @jimmyfallon A video posted by Taylor Swift (@taylorswift) on Feb 16, 2015 at 5:36pm PST

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