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Taylor Swift and Lisa Kudrow perform "Smelly Cat" from "Friends"

"Smelly Cat" got a rebirth Wednesday night thanks to Taylor Swift.

The song, written by Lisa Kudrow's character Phoebe in "Friends," was resurrected when Swift asked the actress to perform it live at the Staples Center in Los Angeles.

Together, Swift (a huge cat lover) and Kudrow took on the duet:

Kudrow clearly had a good time, tweeting afterwards that Swift is "THE best person" she's ever met.

Man, how do we get invited to be in Swift's circle?

Kudrow is the latest in a string of guests showing up for Swift's "1989" world tour. She's also invited Serena Williams, Nick Jonas, Lorde, Ellen DeGeneres, Gig Hadid, Walk the Moon and many others to join her onstage.

And the original "Smelly Cat"...